BEGIN:VCALENDAR VERSION:2.0 PRODID:-//contestcal//Amateur Radio Contest Calendar//EN CALSCALE:GREGORIAN X-WR-CALNAME:Amateur Radio Contests X-WR-TIMEZONE:UTC REFRESH-INTERVAL;VALUE=DURATION:PT12H X-PUBLISHED-TTL:PT12H X-WR-CALDESC:Rolling window: the last 30 days and the next 365 days. Every contest in the catalog. Dates are computed from each sponsor's own publish ed rules. Times are UTC instants\; events marked TENTATIVE have not been v erified against the sponsor's page yet. BEGIN:VEVENT UID:naqp-rtty-20260718T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20260718T180000Z DTEND:20260719T055900Z SUMMARY:North American QSO Party\, RTTY DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: RTTY\nBands: 16 0m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + stat e/province/country\nNote: Demonstrates that 'last Saturday' and 'last full weekend' are distinct rules. Same distinction likely resolves the CQ 160 SSB ambiguity.\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260720T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260720T000000Z DTEND:20260720T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260720T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260720T174000Z DTEND:20260720T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20260722T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260722T000000Z DTEND:20260722T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260722T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260722T130000Z DTEND:20260722T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260722T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260722T190000Z DTEND:20260722T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260723T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260723T030000Z DTEND:20260723T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260723T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260723T070000Z DTEND:20260723T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260724T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260724T010000Z DTEND:20260724T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260724T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260724T014500Z DTEND:20260724T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260724T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260724T023000Z DTEND:20260724T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260724T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260724T200000Z DTEND:20260724T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:rsgb-iota-20260725T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20260725T120000Z DTEND:20260726T120000Z SUMMARY:RSGB IOTA Contest DESCRIPTION:Sponsor: RSGB Contest Committee\nModes: CW\, SSB\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 24h\nExchange: RST + serial\; island stat ions add IOTA reference\nLogs due: 2026-07-31\nRules: https://www.rsgbcc.o rg/hf/rules/2026/riota.shtml URL:https://www.rsgbcc.org/hf/rules/2026/riota.shtml CATEGORIES:CW,SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260727T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260727T000000Z DTEND:20260727T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260727T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260727T174000Z DTEND:20260727T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260729T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260729T130000Z DTEND:20260729T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260729T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260729T190000Z DTEND:20260729T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260730T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260730T030000Z DTEND:20260730T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260730T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260730T070000Z DTEND:20260730T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260731T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260731T010000Z DTEND:20260731T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260731T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260731T014500Z DTEND:20260731T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260731T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260731T023000Z DTEND:20260731T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260731T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260731T200000Z DTEND:20260731T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:tenten-summer-phone-20260801T0001@contestcal DTSTAMP:20260817T034254Z DTSTART:20260801T000100Z DTEND:20260802T235900Z SUMMARY:10-10 International Summer QSO Party (Phone) DESCRIPTION:Sponsor: 10-10 International Net\nModes: SSB\nBands: 10m\nDurat ion: 47h 58m\nExchange: Call sign + name + 10-10 number + QTH (state\, pro vince or country). Record 0 if the other station has no 10-10 number.\nRul es: https://www.ten-ten.org/index.php/activity/qso-party-rules URL:https://www.ten-ten.org/index.php/activity/qso-party-rules CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-222-and-up-20260801T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20260801T180000Z DTEND:20260802T180000Z SUMMARY:ARRL 222 MHz and Up Distance Contest (unverified) DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 1.25m\, 70cm\, 33cm\, 23cm\ , 13cm\, 3cm\nBand note: 222 MHz through 241 GHz\nDuration: 24h\nExchange: not recorded yet — see the sponsor's rules below\nNote: Not listed in A RRL generic calendar. Rule inferred from published 2026 dates -- confirm.\ nUNVERIFIED: these dates have not yet been checked against the sponsor's o wn published rules. Confirm before you rely on them.\nRules: http://www.ar rl.org/222-mhz-and-up-distance-contest URL:http://www.arrl.org/222-mhz-and-up-distance-contest CATEGORIES:Mixed STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:naqp-cw-20260801T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20260801T180000Z DTEND:20260802T055900Z SUMMARY:North American QSO Party\, CW DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: CW\nBands: 160m \, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + state/ province/country\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:sarl-hf-phone-20260802T1400@contestcal DTSTAMP:20260817T034254Z DTSTART:20260802T140000Z DTEND:20260802T170000Z SUMMARY:SARL HF Phone Contest (unverified) DESCRIPTION:Sponsor: SARL\nModes: SSB\nBands: not yet read off the sponsor' s own rules\nDuration: 3h\nExchange: not recorded yet — see the sponsor' s rules below\nEligibility: Entry limited to ZS. K stations may be worked but cannot submit an entry.\nNote: UNVERIFIED. sarl.org.za returned 503 du ring research\; on 2026-08-16 its rules page served an expired TLS certifi cate. Bands are unrecorded for that reason\, not because the contest has n one. Confirm recurrence and whether DX entries are accepted.\nUNVERIFIED: these dates have not yet been checked against the sponsor's own published rules. Confirm before you rely on them.\nRules: https://www.sarl.org.za/ URL:https://www.sarl.org.za/ CATEGORIES:SSB STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260803T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260803T000000Z DTEND:20260803T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260803T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260803T174000Z DTEND:20260803T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20260804T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260804T000000Z DTEND:20260804T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260805T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260805T130000Z DTEND:20260805T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260805T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260805T190000Z DTEND:20260805T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260806T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260806T030000Z DTEND:20260806T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260806T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260806T070000Z DTEND:20260806T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260807T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260807T010000Z DTEND:20260807T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260807T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260807T014500Z DTEND:20260807T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260807T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260807T023000Z DTEND:20260807T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260807T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260807T200000Z DTEND:20260807T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20260808T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20260808T120000Z DTEND:20260809T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20260810T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260810T000000Z DTEND:20260810T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260810T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260810T000000Z DTEND:20260810T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260810T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260810T174000Z DTEND:20260810T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260812T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260812T130000Z DTEND:20260812T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260812T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260812T190000Z DTEND:20260812T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260813T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260813T030000Z DTEND:20260813T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260813T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260813T070000Z DTEND:20260813T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260814T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260814T010000Z DTEND:20260814T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260814T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260814T014500Z DTEND:20260814T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260814T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260814T023000Z DTEND:20260814T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260814T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260814T200000Z DTEND:20260814T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:sartg-ww-rtty-20260815T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260815T000000Z DTEND:20260815T080000Z SUMMARY:SARTG WW RTTY Contest DESCRIPTION:Sponsor: SARTG (Scandinavian Amateur Radio Teleprinter Group)\n Modes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 8h\nExchange: R ST + QSO number starting with 001\nNote: Three separate eight-hour periods with gaps between them\, not one continuous 48-hour run -- encoded as thr ee sessions off the Saturday anchor. SARTG's own '15 - 16 August 2026' is the independent check on the third-full-weekend rule.\nRules: https://www. sartg.com/contest/wwrules.htm URL:https://www.sartg.com/contest/wwrules.htm CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-10ghz-leg1-20260815T0900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260815T090000Z DTEND:20260817T075900Z SUMMARY:ARRL 10 GHz and Up Contest\, Round 1 DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 3cm\nBand note: 10 GHz thro ugh light\nDuration: 46h 59m\nExchange: not recorded yet — see the spons or's rules below\nNote: CORRECTION: this was stored as a local-time contes t running 0600 local Saturday to 2359 local Sunday. ARRL has since moved i t to fixed UTC and says so explicitly in the rules. It is now a plain UTC record -- 0900Z Saturday to 0759Z Monday -- and carries no timezone or loc al_rolling flag. Operating time is capped at 42 hours inside that 47-hour window. Log deadline is stated once for the whole contest -- 'no later tha n THIRTY (30) days after the second weekend' -- so it is recorded on Round 2 only\; counting 30 days from Round 1's own end would be wrong.\nRules: http://www.arrl.org/10-ghz-up URL:http://www.arrl.org/10-ghz-up CATEGORIES:Mixed STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:sartg-ww-rtty-20260815T1600@contestcal DTSTAMP:20260817T034254Z DTSTART:20260815T160000Z DTEND:20260816T000000Z SUMMARY:SARTG WW RTTY Contest DESCRIPTION:Sponsor: SARTG (Scandinavian Amateur Radio Teleprinter Group)\n Modes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 8h\nExchange: R ST + QSO number starting with 001\nNote: Three separate eight-hour periods with gaps between them\, not one continuous 48-hour run -- encoded as thr ee sessions off the Saturday anchor. SARTG's own '15 - 16 August 2026' is the independent check on the third-full-weekend rule.\nRules: https://www. sartg.com/contest/wwrules.htm URL:https://www.sartg.com/contest/wwrules.htm CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:naqp-ssb-20260815T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20260815T180000Z DTEND:20260816T055900Z SUMMARY:North American QSO Party\, SSB DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: SSB\nBands: 160 m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + state /province/country\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:sartg-ww-rtty-20260816T0800@contestcal DTSTAMP:20260817T034254Z DTSTART:20260816T080000Z DTEND:20260816T160000Z SUMMARY:SARTG WW RTTY Contest DESCRIPTION:Sponsor: SARTG (Scandinavian Amateur Radio Teleprinter Group)\n Modes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 8h\nExchange: R ST + QSO number starting with 001\nNote: Three separate eight-hour periods with gaps between them\, not one continuous 48-hour run -- encoded as thr ee sessions off the Saturday anchor. SARTG's own '15 - 16 August 2026' is the independent check on the third-full-weekend rule.\nRules: https://www. sartg.com/contest/wwrules.htm URL:https://www.sartg.com/contest/wwrules.htm CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-rookie-roundup-rtty-20260816T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20260816T180000Z DTEND:20260816T235900Z SUMMARY:ARRL Rookie Roundup\, RTTY DESCRIPTION:Sponsor: ARRL\nModes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m\ nDuration: 5h 59m\nExchange: not recorded yet — see the sponsor's rules below\nRules: http://www.arrl.org/rookie-roundup URL:http://www.arrl.org/rookie-roundup CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260817T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260817T000000Z DTEND:20260817T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260817T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260817T174000Z DTEND:20260817T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260819T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260819T130000Z DTEND:20260819T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260819T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260819T190000Z DTEND:20260819T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260820T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260820T030000Z DTEND:20260820T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260820T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260820T070000Z DTEND:20260820T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260821T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260821T010000Z DTEND:20260821T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260821T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260821T014500Z DTEND:20260821T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260821T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260821T023000Z DTEND:20260821T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260821T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260821T200000Z DTEND:20260821T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260824T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260824T000000Z DTEND:20260824T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260824T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260824T174000Z DTEND:20260824T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20260826T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260826T000000Z DTEND:20260826T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260826T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260826T130000Z DTEND:20260826T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260826T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260826T190000Z DTEND:20260826T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260827T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260827T030000Z DTEND:20260827T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260827T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260827T070000Z DTEND:20260827T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260828T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260828T010000Z DTEND:20260828T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260828T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260828T014500Z DTEND:20260828T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260828T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260828T023000Z DTEND:20260828T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260828T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260828T200000Z DTEND:20260828T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260831T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260831T000000Z DTEND:20260831T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260831T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260831T174000Z DTEND:20260831T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260902T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260902T130000Z DTEND:20260902T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260902T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260902T190000Z DTEND:20260902T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260903T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260903T030000Z DTEND:20260903T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260903T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260903T070000Z DTEND:20260903T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260904T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260904T010000Z DTEND:20260904T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260904T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260904T014500Z DTEND:20260904T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260904T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260904T023000Z DTEND:20260904T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260904T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260904T200000Z DTEND:20260904T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-htp-40m-20260905T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260905T130000Z DTEND:20260905T160000Z SUMMARY:AGCW Handtastenparty 40m (HTP) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 40m\nDuration: 3h\nExchange : RST + running 3-digit QSO number from 001 + class + name + age\nRules: h ttps://www.agcw.de/contest/htp/ URL:https://www.agcw.de/contest/htp/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-jay-hudak-80m-20260905T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260905T200000Z DTEND:20260906T195900Z SUMMARY:PODXS 070 Club Jay Hudak Memorial 80M Sprint DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 80m\nDu ration: 23h 59m\nExchange: State/province/country (SPC)\nLogs due: 2026-09 -13\nNote: Six-hour operating limit inside a 24-hour window. Dedicated to Jay Hudak KA3X\, 070 #001.\nRules: https://www.podxs070.com/o7o-club-spons ored-contests/jay-hudak-memorial-80m-sprint URL:https://www.podxs070.com/o7o-club-sponsored-contests/jay-hudak-memorial -80m-sprint CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260907T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260907T000000Z DTEND:20260907T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260907T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260907T174000Z DTEND:20260907T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20260908T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260908T000000Z DTEND:20260908T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260909T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260909T130000Z DTEND:20260909T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260909T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260909T190000Z DTEND:20260909T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260910T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260910T030000Z DTEND:20260910T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260910T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260910T070000Z DTEND:20260910T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260911T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260911T010000Z DTEND:20260911T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260911T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260911T014500Z DTEND:20260911T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260911T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260911T023000Z DTEND:20260911T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260911T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260911T200000Z DTEND:20260911T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20260912T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20260912T120000Z DTEND:20260913T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-september-vhf-20260912T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20260912T180000Z DTEND:20260914T025900Z SUMMARY:ARRL September VHF Contest DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 6m\, 2m\, 1.25m\, 70cm\, 33 cm\, 23cm\, 13cm\, 3cm\nBand note: All authorized frequencies above 50 MHz \nDuration: 32h 59m\nExchange: not recorded yet — see the sponsor's rule s below\nRules: http://www.arrl.org/september-vhf URL:http://www.arrl.org/september-vhf CATEGORIES:Mixed STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ncj-sprint-cw-20260913T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260913T000000Z DTEND:20260913T035900Z SUMMARY:North American Sprint\, CW DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: CW\nBands: 80m\ , 40m\, 20m\nDuration: 3h 59m\nExchange: Other station's call + your call + serial number + name + state/province/country ('DX' outside North Americ a)\nLogs due: 2026-09-20\nNote: Encoded as 'manual' deliberately. NCJ publ ishes explicit dates per year and flagged 2026 September with 'NOTE CW DAT E SHIFT'\, so there is no stable derivable recurrence to encode. 2026 happ ens to land on the 2nd Sunday of February and the 2nd Sunday of September\ , but that pattern is NOT a rule NCJ states -- re-read the rules PDF each year.\nRules: https://www.ncjweb.com/Sprint-Rules.pdf URL:https://www.ncjweb.com/Sprint-Rules.pdf CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20260914T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260914T000000Z DTEND:20260914T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260914T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260914T000000Z DTEND:20260914T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260914T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260914T174000Z DTEND:20260914T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260916T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260916T130000Z DTEND:20260916T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260916T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260916T190000Z DTEND:20260916T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260917T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260917T030000Z DTEND:20260917T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260917T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260917T070000Z DTEND:20260917T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260918T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260918T010000Z DTEND:20260918T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260918T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260918T014500Z DTEND:20260918T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260918T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260918T023000Z DTEND:20260918T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260918T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260918T200000Z DTEND:20260918T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-10ghz-leg2-20260919T0900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260919T090000Z DTEND:20260921T075900Z SUMMARY:ARRL 10 GHz and Up Contest\, Round 2 DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 3cm\nBand note: 10 GHz thro ugh light\nDuration: 46h 59m\nExchange: not recorded yet — see the spons or's rules below\nLogs due: 2026-10-21\nNote: CORRECTION: this was stored as a local-time contest running 0600 local Saturday to 2359 local Sunday. ARRL has since moved it to fixed UTC and says so explicitly in the rules. It is now a plain UTC record -- 0900Z Saturday to 0759Z Monday -- and carr ies no timezone or local_rolling flag. Operating time is capped at 42 hour s inside that 47-hour window. Also resolves the suspected typo flagged ear lier: ARRL's rule reads 'Third full weekend of August AND SEPTEMBER'\, so a single rule covers both rounds and the September anchor was right all al ong.\nRules: http://www.arrl.org/10-ghz-up URL:http://www.arrl.org/10-ghz-up CATEGORIES:Mixed STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ncj-sprint-rtty-20260920T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260920T000000Z DTEND:20260920T035900Z SUMMARY:North American Sprint\, RTTY DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: RTTY\nBands: 80 m\, 40m\, 20m\nDuration: 3h 59m\nExchange: Other station's call + your cal l + serial number + name + state/province/country ('DX' outside North Amer ica)\nLogs due: 2026-09-27\nNote: Same 'manual' reasoning as the CW Sprint -- NCJ states dates\, not a recurrence rule.\nRules: https://www.ncjweb.c om/Sprint-Rules.pdf URL:https://www.ncjweb.com/Sprint-Rules.pdf CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:bartg-sprint-psk63-20260920T1700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260920T170000Z DTEND:20260920T205900Z SUMMARY:BARTG Sprint PSK63 Contest DESCRIPTION:Sponsor: BARTG\nModes: Digital (PSK63)\nBands: 80m\, 40m\, 20m\ , 15m\, 10m\nDuration: 3h 59m\nExchange: Message number only (3 or 4 figur es from 001)\nLogs due: 2026-09-27\nRules: https://bartg.org.uk/bartg-spri nt-psk63-contest/ URL:https://bartg.org.uk/bartg-sprint-psk63-contest/ CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260921T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260921T000000Z DTEND:20260921T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260921T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260921T174000Z DTEND:20260921T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20260923T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260923T000000Z DTEND:20260923T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260923T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260923T130000Z DTEND:20260923T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260923T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260923T190000Z DTEND:20260923T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260924T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260924T030000Z DTEND:20260924T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260924T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260924T070000Z DTEND:20260924T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20260925T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20260925T010000Z DTEND:20260925T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20260925T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20260925T014500Z DTEND:20260925T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20260925T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20260925T023000Z DTEND:20260925T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260925T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260925T200000Z DTEND:20260925T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-ww-rtty-20260926T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260926T000000Z DTEND:20260927T235900Z SUMMARY:CQ Worldwide DX Contest\, RTTY (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: RTTY\nBands: 80m\, 40m\, 20m\, 15m \, 10m\nBand note: Five bands only: 3.5\, 7\, 14\, 21 and 28 MHz\nDuration : 47h 59m\nExchange: not recorded yet — see the sponsor's rules below\nN ote: CONFIRM against sponsor rules before publishing.\nUNVERIFIED: these d ates have not yet been checked against the sponsor's own published rules. Confirm before you rely on them.\nRules: https://www.cqwwrtty.com/rules.ht m URL:https://www.cqwwrtty.com/rules.htm CATEGORIES:RTTY STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20260926T1400@contestcal DTSTAMP:20260817T034254Z DTSTART:20260926T140000Z DTEND:20260926T170000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 3h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20260926T1700@contestcal DTSTAMP:20260817T034254Z DTSTART:20260926T170000Z DTEND:20260926T180000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 1h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20260928T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20260928T000000Z DTEND:20260928T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20260928T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20260928T174000Z DTEND:20260928T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260930T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20260930T130000Z DTEND:20260930T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20260930T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20260930T190000Z DTEND:20260930T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261001T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261001T030000Z DTEND:20261001T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261001T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261001T070000Z DTEND:20261001T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261002T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261002T010000Z DTEND:20261002T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261002T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261002T014500Z DTEND:20261002T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261002T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261002T023000Z DTEND:20261002T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261002T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261002T200000Z DTEND:20261002T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-dtc-20261003T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261003T070000Z DTEND:20261003T100000Z SUMMARY:Deutscher Telegrafie Contest (DTC) DESCRIPTION:Sponsor: AGCW-DL / High Speed Club (HSC)\nModes: CW\nBands: 80m \, 40m\nDuration: 3h\nExchange: German stations: RST + LDK (district vehic le registration code). All others: RST only.\nNote: Anchored on German Uni ty Day\, a fixed calendar date\, so it moves through the week rather than sitting on a weekend. 'Seit einigen Jahren' -- for some years now -- is AG CW hedging its own history\, not the current rule.\nRules: https://www.agc w.de/contest/dtc/ URL:https://www.agcw.de/contest/dtc/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261005T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261005T000000Z DTEND:20261005T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261005T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261005T174000Z DTEND:20261005T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20261006T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261006T000000Z DTEND:20261006T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261007T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261007T130000Z DTEND:20261007T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261007T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261007T190000Z DTEND:20261007T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261008T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261008T030000Z DTEND:20261008T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261008T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261008T070000Z DTEND:20261008T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261009T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261009T010000Z DTEND:20261009T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261009T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261009T014500Z DTEND:20261009T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261009T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261009T023000Z DTEND:20261009T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261009T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261009T200000Z DTEND:20261009T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:tenten-day-sprint-20261010T0001@contestcal DTSTAMP:20260817T034254Z DTSTART:20261010T000100Z DTEND:20261010T235900Z SUMMARY:10-10 International 10-10 Day Sprint DESCRIPTION:Sponsor: 10-10 International Net\nModes: SSB\, CW\, Digital\, R TTY\nBands: 10m\nDuration: 23h 58m\nExchange: Call sign + name + 10-10 num ber + QTH (state\, province or country). Record 0 if the other station has no 10-10 number.\nNote: All modes\, unlike the two phone-only QSO Parties . Chapter scores may not be assigned for the Sprint.\nRules: https://www.t en-ten.org/index.php/activity/qso-party-rules URL:https://www.ten-ten.org/index.php/activity/qso-party-rules CATEGORIES:SSB,CW,Digital,RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20261010T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20261010T120000Z DTEND:20261011T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-160m-great-pumpkin-20261010T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261010T200000Z DTEND:20261011T195900Z SUMMARY:PODXS 070 Club 160M Great Pumpkin Sprint DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 160m\nD uration: 23h 59m\nExchange: State/province/country (SPC)\nLogs due: 2026-1 0-18\nNote: The rules page writes the close as '2000 UTC' while the club's contest calendar gives 'Ends 1959 UTC 11-Oct-2026'. Encoded as 1959\, mat ching the calendar and the identical wording used for the 40 m and 80 m sp rints. One minute\; flagged rather than silently reconciled.\nRules: https ://www.podxs070.com/o7o-club-sponsored-contests/160m-great-pumpkin-sprint URL:https://www.podxs070.com/o7o-club-sponsored-contests/160m-great-pumpkin -sprint CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20261012T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261012T000000Z DTEND:20261012T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261012T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261012T000000Z DTEND:20261012T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261012T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261012T174000Z DTEND:20261012T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261014T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261014T130000Z DTEND:20261014T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261014T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261014T190000Z DTEND:20261014T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261015T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261015T030000Z DTEND:20261015T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261015T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261015T070000Z DTEND:20261015T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261016T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261016T010000Z DTEND:20261016T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261016T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261016T014500Z DTEND:20261016T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261016T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261016T023000Z DTEND:20261016T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261016T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261016T200000Z DTEND:20261016T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261019T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261019T000000Z DTEND:20261019T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261019T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261019T174000Z DTEND:20261019T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261021T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261021T130000Z DTEND:20261021T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-sta-20261021T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261021T190000Z DTEND:20261021T203000Z SUMMARY:AGCW Schlackertastenabend (STA) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\, 40m\nDuration: 1h 30m \nExchange: RST + running QSO number from 001 per year + type of bug used\ nNote: AGCW's own 'nächster Termin: 21. Okt. 2026' is the independent che ck on the October leg -- the third Wednesday of October 2026 is indeed the 21st.\nRules: https://www.agcw.de/contest/sta/ URL:https://www.agcw.de/contest/sta/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261021T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261021T190000Z DTEND:20261021T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261022T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261022T030000Z DTEND:20261022T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261022T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261022T070000Z DTEND:20261022T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261023T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261023T010000Z DTEND:20261023T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261023T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261023T014500Z DTEND:20261023T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261023T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261023T023000Z DTEND:20261023T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261023T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261023T200000Z DTEND:20261023T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-ww-ssb-20261024T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261024T000000Z DTEND:20261025T235900Z SUMMARY:CQ Worldwide DX Contest\, SSB (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: SSB\nBands: 160m\, 80m\, 40m\, 20m \, 15m\, 10m\nBand note: Six bands only: 1.8\, 3.5\, 7\, 14\, 21 and 28 MH z\nDuration: 47h 59m\nExchange: not recorded yet — see the sponsor's rul es below\nNote: CONFIRM against sponsor rules before publishing.\nUNVERIFI ED: these dates have not yet been checked against the sponsor's own publis hed rules. Confirm before you rely on them.\nRules: https://www.cqww.com/r ules.htm URL:https://www.cqww.com/rules.htm CATEGORIES:SSB STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261026T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261026T000000Z DTEND:20261026T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261026T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261026T174000Z DTEND:20261026T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20261028T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261028T000000Z DTEND:20261028T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261028T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261028T130000Z DTEND:20261028T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261028T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261028T190000Z DTEND:20261028T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261029T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261029T030000Z DTEND:20261029T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261029T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261029T070000Z DTEND:20261029T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261030T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261030T010000Z DTEND:20261030T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261030T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261030T014500Z DTEND:20261030T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261030T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261030T023000Z DTEND:20261030T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261030T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261030T200000Z DTEND:20261030T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261102T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261102T000000Z DTEND:20261102T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261102T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261102T174000Z DTEND:20261102T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20261103T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261103T010000Z DTEND:20261103T030000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261104T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261104T130000Z DTEND:20261104T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261104T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261104T190000Z DTEND:20261104T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261105T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261105T030000Z DTEND:20261105T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261105T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261105T070000Z DTEND:20261105T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261106T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261106T010000Z DTEND:20261106T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261106T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261106T014500Z DTEND:20261106T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261106T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261106T023000Z DTEND:20261106T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261106T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261106T200000Z DTEND:20261106T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-sweepstakes-cw-20261107T2100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261107T210000Z DTEND:20261109T025900Z SUMMARY:ARRL November Sweepstakes\, CW DESCRIPTION:Sponsor: ARRL\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 29h 59m\nExchange: not recorded yet — see the sponsor's rules below\nRules: http://www.arrl.org/sweepstakes URL:http://www.arrl.org/sweepstakes CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261109T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261109T000000Z DTEND:20261109T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20261109T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261109T010000Z DTEND:20261109T030000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261109T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261109T174000Z DTEND:20261109T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261111T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261111T130000Z DTEND:20261111T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261111T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261111T190000Z DTEND:20261111T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261112T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261112T030000Z DTEND:20261112T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261112T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261112T070000Z DTEND:20261112T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261113T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261113T010000Z DTEND:20261113T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261113T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261113T014500Z DTEND:20261113T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261113T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261113T023000Z DTEND:20261113T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261113T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261113T200000Z DTEND:20261113T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-triple-play-20261114T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261114T000000Z DTEND:20261116T235900Z SUMMARY:PODXS 070 Club Triple Play Low Band Sprint DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 160m\, 80m\, 40m\nDuration: 71h 59m\nExchange: State/province/country (SPC)\nLogs due: 2026-11-23\nNote: Three UTC days\, one six-hour block per day -- so 18 hours of operating inside a 72-hour window.\nRules: https://www.podxs07 0.com/o7o-club-sponsored-contests/triple-play-low-band-sprint URL:https://www.podxs070.com/o7o-club-sponsored-contests/triple-play-low-ba nd-sprint CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20261114T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20261114T120000Z DTEND:20261115T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261116T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261116T000000Z DTEND:20261116T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261116T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261116T174000Z DTEND:20261116T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261118T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261118T130000Z DTEND:20261118T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261118T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261118T190000Z DTEND:20261118T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261119T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261119T030000Z DTEND:20261119T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261119T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261119T070000Z DTEND:20261119T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261120T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261120T010000Z DTEND:20261120T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261120T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261120T014500Z DTEND:20261120T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261120T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261120T023000Z DTEND:20261120T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261120T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261120T200000Z DTEND:20261120T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-sweepstakes-ssb-20261121T2100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261121T210000Z DTEND:20261123T025900Z SUMMARY:ARRL November Sweepstakes\, Phone DESCRIPTION:Sponsor: ARRL\nModes: SSB\nBands: 160m\, 80m\, 40m\, 20m\, 15m\ , 10m\nDuration: 29h 59m\nExchange: not recorded yet — see the sponsor's rules below\nRules: http://www.arrl.org/sweepstakes URL:http://www.arrl.org/sweepstakes CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261123T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261123T000000Z DTEND:20261123T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261123T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261123T174000Z DTEND:20261123T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20261125T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261125T000000Z DTEND:20261125T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261125T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261125T130000Z DTEND:20261125T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261125T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261125T190000Z DTEND:20261125T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261126T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261126T030000Z DTEND:20261126T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261126T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261126T070000Z DTEND:20261126T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261127T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261127T010000Z DTEND:20261127T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261127T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261127T014500Z DTEND:20261127T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261127T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261127T023000Z DTEND:20261127T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261127T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261127T200000Z DTEND:20261127T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-ww-cw-20261128T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261128T000000Z DTEND:20261129T235900Z SUMMARY:CQ Worldwide DX Contest\, CW (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\ , 15m\, 10m\nBand note: Six bands only: 1.8\, 3.5\, 7\, 14\, 21 and 28 MHz \nDuration: 47h 59m\nExchange: not recorded yet — see the sponsor's rule s below\nNote: CONFIRM against sponsor rules before publishing.\nUNVERIFIE D: these dates have not yet been checked against the sponsor's own publish ed rules. Confirm before you rely on them.\nRules: https://www.cqww.com/ru les.htm URL:https://www.cqww.com/rules.htm CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261130T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261130T000000Z DTEND:20261130T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261130T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261130T174000Z DTEND:20261130T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261202T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261202T130000Z DTEND:20261202T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261202T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261202T190000Z DTEND:20261202T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261203T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261203T030000Z DTEND:20261203T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261203T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261203T070000Z DTEND:20261203T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261204T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261204T010000Z DTEND:20261204T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261204T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261204T014500Z DTEND:20261204T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261204T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261204T023000Z DTEND:20261204T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261204T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261204T200000Z DTEND:20261204T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-160m-20261204T2200@contestcal DTSTAMP:20260817T034254Z DTSTART:20261204T220000Z DTEND:20261206T155900Z SUMMARY:ARRL 160-Meter Contest DESCRIPTION:Sponsor: ARRL\nModes: CW\nBands: 160m\nDuration: 41h 59m\nExcha nge: not recorded yet — see the sponsor's rules below\nRules: http://www .arrl.org/160-meter URL:http://www.arrl.org/160-meter CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261207T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261207T000000Z DTEND:20261207T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261207T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261207T174000Z DTEND:20261207T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20261208T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261208T010000Z DTEND:20261208T030000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261209T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261209T130000Z DTEND:20261209T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261209T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261209T190000Z DTEND:20261209T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261210T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261210T030000Z DTEND:20261210T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261210T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261210T070000Z DTEND:20261210T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261211T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261211T010000Z DTEND:20261211T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261211T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261211T014500Z DTEND:20261211T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261211T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261211T023000Z DTEND:20261211T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261211T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261211T200000Z DTEND:20261211T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-10m-20261212T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261212T000000Z DTEND:20261213T235900Z SUMMARY:ARRL 10-Meter Contest DESCRIPTION:Sponsor: ARRL\nModes: CW\, SSB\nBands: 10m\nDuration: 47h 59m\n Exchange: not recorded yet — see the sponsor's rules below\nRules: http: //www.arrl.org/10-meter URL:http://www.arrl.org/10-meter CATEGORIES:CW,SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-triple-play-doubleheader-20261212T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261212T000000Z DTEND:20261214T235900Z SUMMARY:PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 160m\, 80m\, 40m\nDuration: 71h 59m\nExchange: State/province/country (SPC)\nLogs due: 2026-12-21\nNote: Second running of the Triple Play format\, shares a rules page with the November event.\nRules: https://www.podxs070.com/o7o -club-sponsored-contests/triple-play-low-band-sprint URL:https://www.podxs070.com/o7o-club-sponsored-contests/triple-play-low-ba nd-sprint CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20261212T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20261212T120000Z DTEND:20261213T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261214T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261214T000000Z DTEND:20261214T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20261214T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261214T010000Z DTEND:20261214T030000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261214T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261214T174000Z DTEND:20261214T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261216T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261216T130000Z DTEND:20261216T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261216T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261216T190000Z DTEND:20261216T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261217T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261217T030000Z DTEND:20261217T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261217T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261217T070000Z DTEND:20261217T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261218T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261218T010000Z DTEND:20261218T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261218T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261218T014500Z DTEND:20261218T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261218T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261218T023000Z DTEND:20261218T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261218T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261218T200000Z DTEND:20261218T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-rookie-roundup-cw-20261220T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20261220T180000Z DTEND:20261220T235900Z SUMMARY:ARRL Rookie Roundup\, CW DESCRIPTION:Sponsor: ARRL\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nD uration: 5h 59m\nExchange: not recorded yet — see the sponsor's rules be low\nRules: http://www.arrl.org/rookie-roundup URL:http://www.arrl.org/rookie-roundup CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261221T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261221T000000Z DTEND:20261221T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261221T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261221T174000Z DTEND:20261221T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20261223T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261223T000000Z DTEND:20261223T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261223T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261223T130000Z DTEND:20261223T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261223T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261223T190000Z DTEND:20261223T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261224T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261224T030000Z DTEND:20261224T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261224T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261224T070000Z DTEND:20261224T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20261225T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20261225T010000Z DTEND:20261225T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20261225T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20261225T014500Z DTEND:20261225T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20261225T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20261225T023000Z DTEND:20261225T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261225T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261225T200000Z DTEND:20261225T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20261228T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20261228T000000Z DTEND:20261228T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20261228T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20261228T174000Z DTEND:20261228T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261230T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261230T130000Z DTEND:20261230T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261230T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20261230T190000Z DTEND:20261230T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261231T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20261231T030000Z DTEND:20261231T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20261231T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20261231T070000Z DTEND:20261231T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-straight-key-night-20270101T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T000000Z DTEND:20270101T235900Z SUMMARY:ARRL Straight Key Night DESCRIPTION:Sponsor: ARRL\nModes: CW\nBands: 160m\, 80m\, 60m\, 40m\, 30m\, 20m\, 17m\, 15m\, 12m\, 10m\, 6m\, 2m\, 1.25m\, 70cm\, 33cm\, 23cm\, 13cm \, 3cm\nBand note: All authorized amateur frequencies\; activity tradition ally centres on HF\nDuration: 23h 59m\nExchange: not recorded yet — see the sponsor's rules below\nRules: http://www.arrl.org/straight-key-night URL:http://www.arrl.org/straight-key-night CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270101T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T010000Z DTEND:20270101T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270101T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T014500Z DTEND:20270101T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270101T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T023000Z DTEND:20270101T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:sartg-new-year-rtty-20270101T0800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T080000Z DTEND:20270101T110000Z SUMMARY:SARTG New Year RTTY Contest DESCRIPTION:Sponsor: SARTG (Scandinavian Amateur Radio Teleprinter Group)\n Modes: RTTY\nBands: 80m\, 40m\nDuration: 3h\nExchange: RST + QSO number st arting with 001 + name + 'Happy New Year' in your native language (abbrevi ations like 'HNY' are not allowed)\nRules: https://www.sartg.com/contest/n yrules.htm URL:https://www.sartg.com/contest/nyrules.htm CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-hnyc-20270101T0900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T090000Z DTEND:20270101T120000Z SUMMARY:AGCW Happy New Year Contest (HNY) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\, 40m\, 20m\nDuration: 3h\nExchange: RST + running 3-digit QSO number from 001 (AGCW members also send their membership number\, e.g. 599 067/2583)\nNote: Log deadline is a fixed calendar date -- '14. Januar 24:00 MEZ' -- not an interval after t he contest\, so log_deadline_days is deliberately unset.\nRules: https://w ww.agcw.de/contest/hnyc/ URL:https://www.agcw.de/contest/hnyc/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20270101T1400@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T140000Z DTEND:20270101T170000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 3h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20270101T1700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270101T170000Z DTEND:20270101T180000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 1h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-pskfest-20270102T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270102T000000Z DTEND:20270102T235900Z SUMMARY:PODXS 070 Club PSKfest DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 80m\, 4 0m\, 20m\, 15m\, 10m\nDuration: 23h 59m\nExchange: State/province/country (SPC)\nLogs due: 2027-01-09\nRules: https://www.podxs070.com/o7o-club-spon sored-contests/pskfest URL:https://www.podxs070.com/o7o-club-sponsored-contests/pskfest CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:rsgb-afs-cw-20270102T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270102T130000Z DTEND:20270102T170000Z SUMMARY:RSGB AFS Contest\, CW (unverified) DESCRIPTION:Sponsor: RSGB Contest Committee\nModes: CW\nBands: 80m\, 40m\nD uration: 4h\nExchange: not recorded yet — see the sponsor's rules below\ nEligibility: Entry limited to G. K stations may be worked but cannot subm it an entry.\nNote: UNVERIFIED. The guessed per-year rules filename return ed 404 -- find the real AFS rules page under rsgbcc.org/hf/ and set rules_ url_pattern. Recurrence and eligibility both unconfirmed.\nUNVERIFIED: the se dates have not yet been checked against the sponsor's own published rul es. Confirm before you rely on them.\nRules: https://www.rsgbcc.org/hf/ URL:https://www.rsgbcc.org/hf/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-rtty-roundup-20270102T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270102T180000Z DTEND:20270103T235900Z SUMMARY:ARRL RTTY Roundup DESCRIPTION:Sponsor: ARRL\nModes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m\ nDuration: 29h 59m\nExchange: not recorded yet — see the sponsor's rules below\nRules: http://www.arrl.org/rtty-roundup URL:http://www.arrl.org/rtty-roundup CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270104T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270104T000000Z DTEND:20270104T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270104T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270104T174000Z DTEND:20270104T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270105T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270105T010000Z DTEND:20270105T030000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270106T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270106T130000Z DTEND:20270106T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270106T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270106T190000Z DTEND:20270106T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270107T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270107T030000Z DTEND:20270107T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270107T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270107T070000Z DTEND:20270107T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270108T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270108T010000Z DTEND:20270108T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270108T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270108T014500Z DTEND:20270108T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270108T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270108T023000Z DTEND:20270108T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270108T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270108T200000Z DTEND:20270108T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270109T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270109T120000Z DTEND:20270110T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:naqp-cw-20270109T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270109T180000Z DTEND:20270110T055900Z SUMMARY:North American QSO Party\, CW DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: CW\nBands: 160m \, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + state/ province/country\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270111T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270111T000000Z DTEND:20270111T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270111T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270111T010000Z DTEND:20270111T030000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270111T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270111T174000Z DTEND:20270111T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270113T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270113T130000Z DTEND:20270113T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270113T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270113T190000Z DTEND:20270113T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270114T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270114T030000Z DTEND:20270114T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270114T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270114T070000Z DTEND:20270114T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270115T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270115T010000Z DTEND:20270115T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270115T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270115T014500Z DTEND:20270115T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270115T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270115T023000Z DTEND:20270115T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270115T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270115T200000Z DTEND:20270115T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:naqp-ssb-20270116T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270116T180000Z DTEND:20270117T055900Z SUMMARY:North American QSO Party\, SSB DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: SSB\nBands: 160 m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + state /province/country\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-january-vhf-20270116T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270116T190000Z DTEND:20270118T035900Z SUMMARY:ARRL January VHF Contest (unverified) DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 6m\, 2m\, 1.25m\, 70cm\, 33 cm\, 23cm\, 13cm\, 3cm\nBand note: All authorized frequencies above 50 MHz \nDuration: 32h 59m\nExchange: not recorded yet — see the sponsor's rule s below\nNote: ARRL states third OR fourth weekend in January -- varies by year. Confirm against current rules annually.\nUNVERIFIED: these dates ha ve not yet been checked against the sponsor's own published rules. Confirm before you rely on them.\nRules: http://www.arrl.org/january-vhf URL:http://www.arrl.org/january-vhf CATEGORIES:Mixed STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270118T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270118T000000Z DTEND:20270118T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270118T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270118T174000Z DTEND:20270118T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270120T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270120T130000Z DTEND:20270120T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270120T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270120T190000Z DTEND:20270120T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270121T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270121T030000Z DTEND:20270121T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270121T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270121T070000Z DTEND:20270121T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270122T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270122T010000Z DTEND:20270122T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270122T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270122T014500Z DTEND:20270122T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270122T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270122T023000Z DTEND:20270122T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270122T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270122T200000Z DTEND:20270122T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:bartg-sprint-20270123T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270123T120000Z DTEND:20270124T115900Z SUMMARY:BARTG January Sprint Contest DESCRIPTION:Sponsor: BARTG\nModes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m \nDuration: 23h 59m\nExchange: Message number only (3 or 4 figures from 00 1) -- no RST\, to shorten the QSO\nLogs due: 2027-01-31\nNote: January is the month where 'full weekend' bites hardest: 2032 has five January Saturd ays but only four full weekends\, and BARTG's own table gives 24 January 2 032 -- the fourth full weekend\, not the fourth Saturday.\nRules: https:// bartg.org.uk/bartg-sprint-contest/ URL:https://bartg.org.uk/bartg-sprint-contest/ CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270125T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270125T000000Z DTEND:20270125T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270125T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270125T174000Z DTEND:20270125T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20270127T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270127T000000Z DTEND:20270127T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270127T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270127T130000Z DTEND:20270127T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270127T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270127T190000Z DTEND:20270127T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270128T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270128T030000Z DTEND:20270128T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270128T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270128T070000Z DTEND:20270128T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270129T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270129T010000Z DTEND:20270129T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270129T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270129T014500Z DTEND:20270129T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270129T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270129T023000Z DTEND:20270129T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270129T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270129T200000Z DTEND:20270129T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-160-cw-20270129T2200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270129T220000Z DTEND:20270131T220000Z SUMMARY:CQ 160-Meter Contest\, CW (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: CW\nBands: 160m\nDuration: 48h\nEx change: not recorded yet — see the sponsor's rules below\nNote: CONFIRM against sponsor rules before publishing.\nUNVERIFIED: these dates have not yet been checked against the sponsor's own published rules. Confirm befor e you rely on them.\nRules: https://www.cq160.com/rules.htm URL:https://www.cq160.com/rules.htm CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270201T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270201T000000Z DTEND:20270201T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270201T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270201T174000Z DTEND:20270201T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270202T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270202T010000Z DTEND:20270202T030000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270203T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270203T130000Z DTEND:20270203T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270203T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270203T190000Z DTEND:20270203T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270204T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270204T030000Z DTEND:20270204T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270204T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270204T070000Z DTEND:20270204T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270205T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270205T010000Z DTEND:20270205T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270205T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270205T014500Z DTEND:20270205T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270205T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270205T023000Z DTEND:20270205T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270205T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270205T200000Z DTEND:20270205T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:tenten-winter-phone-20270206T0001@contestcal DTSTAMP:20260817T034254Z DTSTART:20270206T000100Z DTEND:20270207T235900Z SUMMARY:10-10 International Winter QSO Party (Phone) DESCRIPTION:Sponsor: 10-10 International Net\nModes: SSB\nBands: 10m\nDurat ion: 47h 58m\nExchange: Call sign + name + 10-10 number + QTH (state\, pro vince or country). Record 0 if the other station has no 10-10 number.\nNot e: The rules give the close as 2359 UTC Sunday\; the schedule page says 'c lose at 2400 UTC on the second listed date'. One minute apart. Encoded as 2359 from the rules document\, which is the authoritative text.\nRules: ht tps://www.ten-ten.org/index.php/activity/qso-party-rules URL:https://www.ten-ten.org/index.php/activity/qso-party-rules CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-htp-80m-20270206T1600@contestcal DTSTAMP:20260817T034254Z DTSTART:20270206T160000Z DTEND:20270206T190000Z SUMMARY:AGCW Handtastenparty 80m (HTP) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 3h\nExchange : RST + running 3-digit QSO number from 001 + class + name + age\nRules: h ttps://www.agcw.de/contest/htp/ URL:https://www.agcw.de/contest/htp/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270208T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270208T000000Z DTEND:20270208T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270208T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270208T174000Z DTEND:20270208T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270210T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270210T130000Z DTEND:20270210T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270210T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270210T190000Z DTEND:20270210T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270211T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270211T030000Z DTEND:20270211T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270211T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270211T070000Z DTEND:20270211T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270212T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270212T010000Z DTEND:20270212T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270212T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270212T014500Z DTEND:20270212T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270212T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270212T023000Z DTEND:20270212T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270212T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270212T200000Z DTEND:20270212T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-wpx-rtty-20270213T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270213T000000Z DTEND:20270214T235900Z SUMMARY:CQ WW RTTY WPX Contest (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: RTTY\nBands: 80m\, 40m\, 20m\, 15m \, 10m\nBand note: Only the 3.5\, 7\, 14\, 21 and 28 MHz bands may be used \nDuration: 47h 59m\nExchange: not recorded yet — see the sponsor's rule s below\nNote: CONFIRM against sponsor rules before publishing.\nUNVERIFIE D: these dates have not yet been checked against the sponsor's own publish ed rules. Confirm before you rely on them.\nRules: https://www.cqwpxrtty.c om/rules.htm URL:https://www.cqwpxrtty.com/rules.htm CATEGORIES:RTTY STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270213T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270213T120000Z DTEND:20270214T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-valentine-sprint-20270214T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270214T000000Z DTEND:20270214T235900Z SUMMARY:PODXS 070 Club Valentine Sprint DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 160m\, 80m\, 40m\nDuration: 23h 59m\nExchange: 'OM' or 'YL' + state/province/coun try (SPC). Signal reports and 070 numbers not required.\nLogs due: 2027-02 -21\nNote: The 0000-2359 window is the sprint's outer bound\, not its leng th: 'For scoring\, your six hour block will begin with the hour that you s elect on the scorer page and continue for the next 6 hours.' Maximum opera ting time is six hours.\nRules: https://www.podxs070.com/o7o-club-sponsore d-contests/valentine-sprint URL:https://www.podxs070.com/o7o-club-sponsored-contests/valentine-sprint CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270215T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270215T000000Z DTEND:20270215T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270215T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270215T010000Z DTEND:20270215T030000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270215T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270215T174000Z DTEND:20270215T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270217T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270217T130000Z DTEND:20270217T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-sta-20270217T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270217T190000Z DTEND:20270217T203000Z SUMMARY:AGCW Schlackertastenabend (STA) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\, 40m\nDuration: 1h 30m \nExchange: RST + running QSO number from 001 per year + type of bug used\ nNote: AGCW's own 'nächster Termin: 21. Okt. 2026' is the independent che ck on the October leg -- the third Wednesday of October 2026 is indeed the 21st.\nRules: https://www.agcw.de/contest/sta/ URL:https://www.agcw.de/contest/sta/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270217T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270217T190000Z DTEND:20270217T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270218T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270218T030000Z DTEND:20270218T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270218T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270218T070000Z DTEND:20270218T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270219T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270219T010000Z DTEND:20270219T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270219T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270219T014500Z DTEND:20270219T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270219T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270219T023000Z DTEND:20270219T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270219T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270219T200000Z DTEND:20270219T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-dx-cw-20270220T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270220T000000Z DTEND:20270221T235900Z SUMMARY:ARRL International DX Contest\, CW DESCRIPTION:Sponsor: ARRL\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 47h 59m\nExchange: not recorded yet — see the sponsor's rules below\nWorks: works DX only\nRules: http://www.arrl.org/arrl-dx URL:http://www.arrl.org/arrl-dx CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270222T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270222T000000Z DTEND:20270222T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270222T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270222T174000Z DTEND:20270222T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20270224T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270224T000000Z DTEND:20270224T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270224T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270224T130000Z DTEND:20270224T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270224T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270224T190000Z DTEND:20270224T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270225T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270225T030000Z DTEND:20270225T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270225T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270225T070000Z DTEND:20270225T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270226T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270226T010000Z DTEND:20270226T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270226T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270226T014500Z DTEND:20270226T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270226T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270226T023000Z DTEND:20270226T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270226T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270226T200000Z DTEND:20270226T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-160-ssb-20270226T2200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270226T220000Z DTEND:20270228T220000Z SUMMARY:CQ 160-Meter Contest\, SSB (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: SSB\nBands: 160m\nDuration: 48h\nE xchange: not recorded yet — see the sponsor's rules below\nNote: KNOWN E DGE CASE. In 2026 the strict 'last full weekend' reading yields Feb 20-22\ , but the contest is commonly listed as Feb 27-Mar 1. February's length ma kes this rule ambiguous. MUST be resolved against CQ's actual rules text b efore publishing.\nUNVERIFIED: these dates have not yet been checked again st the sponsor's own published rules. Confirm before you rely on them.\nRu les: https://www.cq160.com/rules.htm URL:https://www.cq160.com/rules.htm CATEGORIES:SSB STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:naqp-rtty-20270227T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270227T180000Z DTEND:20270228T055900Z SUMMARY:North American QSO Party\, RTTY DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: RTTY\nBands: 16 0m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + stat e/province/country\nNote: Demonstrates that 'last Saturday' and 'last full weekend' are distinct rules. Same distinction likely resolves the CQ 160 SSB ambiguity.\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270301T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270301T000000Z DTEND:20270301T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270301T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270301T174000Z DTEND:20270301T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270302T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270302T010000Z DTEND:20270302T030000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-yl-cw-party-20270302T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270302T190000Z DTEND:20270302T210000Z SUMMARY:AGCW YL-CW-Party DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 2h\nExchange : RST + running QSO number from 001 + 'YL' or 'OM' + first name\nNote: AGC W's own 'Nächster Termin: 3. März 2026' is the independent check -- the first Tuesday of March 2026 is the 3rd. OM-to-OM QSOs score zero\, so the contest is built around working YLs.\nRules: https://www.agcw.de/contest/y l-cw-party/ URL:https://www.agcw.de/contest/yl-cw-party/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270303T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270303T130000Z DTEND:20270303T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270303T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270303T190000Z DTEND:20270303T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270304T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270304T030000Z DTEND:20270304T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270304T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270304T070000Z DTEND:20270304T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270305T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270305T010000Z DTEND:20270305T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270305T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270305T014500Z DTEND:20270305T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270305T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270305T023000Z DTEND:20270305T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270305T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270305T200000Z DTEND:20270305T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-dx-ssb-20270306T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270306T000000Z DTEND:20270307T235900Z SUMMARY:ARRL International DX Contest\, Phone DESCRIPTION:Sponsor: ARRL\nModes: SSB\nBands: 160m\, 80m\, 40m\, 20m\, 15m\ , 10m\nDuration: 47h 59m\nExchange: not recorded yet — see the sponsor's rules below\nWorks: works DX only\nRules: http://www.arrl.org/arrl-dx URL:http://www.arrl.org/arrl-dx CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270308T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270308T000000Z DTEND:20270308T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270308T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270308T174000Z DTEND:20270308T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270310T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270310T130000Z DTEND:20270310T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270310T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270310T190000Z DTEND:20270310T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270311T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270311T030000Z DTEND:20270311T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270311T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270311T070000Z DTEND:20270311T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270312T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270312T010000Z DTEND:20270312T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270312T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270312T014500Z DTEND:20270312T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270312T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270312T023000Z DTEND:20270312T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270312T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270312T200000Z DTEND:20270312T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270313T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270313T120000Z DTEND:20270314T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-qrp-contest-20270313T1400@contestcal DTSTAMP:20260817T034254Z DTSTART:20270313T140000Z DTEND:20270313T200000Z SUMMARY:AGCW QRP Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m \nDuration: 6h\nExchange: RST + running number + class\nRules: https://www .agcw.de/contest/qrp/ URL:https://www.agcw.de/contest/qrp/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270315T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270315T000000Z DTEND:20270315T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270315T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270315T000000Z DTEND:20270315T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270315T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270315T174000Z DTEND:20270315T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270317T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270317T130000Z DTEND:20270317T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270317T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270317T190000Z DTEND:20270317T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270318T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270318T030000Z DTEND:20270318T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270318T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270318T070000Z DTEND:20270318T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270319T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270319T010000Z DTEND:20270319T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270319T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270319T014500Z DTEND:20270319T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270319T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270319T023000Z DTEND:20270319T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270319T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270319T200000Z DTEND:20270319T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-st-patricks-20270320T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270320T000000Z DTEND:20270320T235900Z SUMMARY:PODXS 070 Club St. Patrick's Day Contest DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 23h 59m\nExchange: State/provi nce/country (SPC)\nLogs due: 2027-03-27\nRules: https://www.podxs070.com/o 7o-club-sponsored-contests/saint-patrick-s-day-contest URL:https://www.podxs070.com/o7o-club-sponsored-contests/saint-patrick-s-da y-contest CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:bartg-hf-rtty-20270320T0200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270320T020000Z DTEND:20270322T015900Z SUMMARY:BARTG HF RTTY Contest DESCRIPTION:Sponsor: BARTG\nModes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m \nDuration: 47h 59m\nExchange: RST + message number (3 or 4 figures from 0 01) + time in UTC\nLogs due: 2027-03-29\nRules: https://bartg.org.uk/bartg -hf-rtty-contest/ URL:https://bartg.org.uk/bartg-hf-rtty-contest/ CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20270320T1400@contestcal DTSTAMP:20260817T034254Z DTSTART:20270320T140000Z DTEND:20270320T170000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 3h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20270320T1700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270320T170000Z DTEND:20270320T180000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 1h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270322T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270322T000000Z DTEND:20270322T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270322T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270322T174000Z DTEND:20270322T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20270324T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270324T000000Z DTEND:20270324T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270324T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270324T130000Z DTEND:20270324T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270324T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270324T190000Z DTEND:20270324T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270325T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270325T030000Z DTEND:20270325T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270325T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270325T070000Z DTEND:20270325T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270326T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270326T010000Z DTEND:20270326T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270326T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270326T014500Z DTEND:20270326T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270326T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270326T023000Z DTEND:20270326T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270326T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270326T200000Z DTEND:20270326T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-wpx-ssb-20270327T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270327T000000Z DTEND:20270328T235900Z SUMMARY:CQ WW WPX Contest\, SSB (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: SSB\nBands: 160m\, 80m\, 40m\, 20m \, 15m\, 10m\nBand note: Only the 1.8\, 3.5\, 7\, 14\, 21 and 28 MHz bands may be used\nDuration: 47h 59m\nExchange: not recorded yet — see the sp onsor's rules below\nNote: CONFIRM against sponsor rules before publishing .\nUNVERIFIED: these dates have not yet been checked against the sponsor's own published rules. Confirm before you rely on them.\nRules: https://www .cqwpx.com/rules.htm URL:https://www.cqwpx.com/rules.htm CATEGORIES:SSB STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270329T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270329T000000Z DTEND:20270329T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270329T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270329T174000Z DTEND:20270329T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270331T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270331T130000Z DTEND:20270331T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270331T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270331T190000Z DTEND:20270331T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270401T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270401T030000Z DTEND:20270401T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270401T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270401T070000Z DTEND:20270401T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270402T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270402T010000Z DTEND:20270402T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270402T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270402T014500Z DTEND:20270402T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270402T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270402T023000Z DTEND:20270402T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270402T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270402T200000Z DTEND:20270402T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-new-member-jamboree-20270403T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270403T000000Z DTEND:20270403T235900Z SUMMARY:PODXS 070 Club New Member Jamboree DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 80m\, 4 0m\, 20m\, 15m\, 10m\nDuration: 23h 59m\nExchange: Members: 070 Club numbe r + year joined. Non-members: no required exchange.\nLogs due: 2027-04-10\ nRules: https://www.podxs070.com/o7o-club-sponsored-contests/nmj URL:https://www.podxs070.com/o7o-club-sponsored-contests/nmj CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270405T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270405T000000Z DTEND:20270405T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270405T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270405T174000Z DTEND:20270405T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270406T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270406T000000Z DTEND:20270406T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270407T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270407T130000Z DTEND:20270407T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270407T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270407T190000Z DTEND:20270407T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270408T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270408T030000Z DTEND:20270408T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270408T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270408T070000Z DTEND:20270408T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270409T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270409T010000Z DTEND:20270409T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270409T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270409T014500Z DTEND:20270409T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270409T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270409T023000Z DTEND:20270409T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270409T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270409T200000Z DTEND:20270409T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270410T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270410T120000Z DTEND:20270411T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270412T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270412T000000Z DTEND:20270412T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270412T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270412T000000Z DTEND:20270412T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270412T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270412T174000Z DTEND:20270412T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270414T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270414T130000Z DTEND:20270414T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270414T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270414T190000Z DTEND:20270414T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270415T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270415T030000Z DTEND:20270415T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270415T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270415T070000Z DTEND:20270415T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270416T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270416T010000Z DTEND:20270416T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270416T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270416T014500Z DTEND:20270416T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270416T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270416T023000Z DTEND:20270416T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270416T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270416T200000Z DTEND:20270416T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-rookie-roundup-ssb-20270418T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270418T180000Z DTEND:20270418T235900Z SUMMARY:ARRL Rookie Roundup\, SSB DESCRIPTION:Sponsor: ARRL\nModes: SSB\nBands: 80m\, 40m\, 20m\, 15m\, 10m\n Duration: 5h 59m\nExchange: not recorded yet — see the sponsor's rules b elow\nRules: http://www.arrl.org/rookie-roundup URL:http://www.arrl.org/rookie-roundup CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270419T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270419T000000Z DTEND:20270419T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270419T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270419T174000Z DTEND:20270419T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270421T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270421T130000Z DTEND:20270421T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270421T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270421T190000Z DTEND:20270421T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270422T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270422T030000Z DTEND:20270422T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270422T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270422T070000Z DTEND:20270422T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270423T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270423T010000Z DTEND:20270423T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270423T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270423T014500Z DTEND:20270423T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270423T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270423T023000Z DTEND:20270423T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270423T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270423T200000Z DTEND:20270423T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:bartg-sprint75-20270425T1700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270425T170000Z DTEND:20270425T205900Z SUMMARY:BARTG Sprint75 Contest DESCRIPTION:Sponsor: BARTG\nModes: RTTY (RTTY 75 baud)\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 3h 59m\nExchange: Message number only (3 or 4 f igures from 001)\nLogs due: 2027-05-02\nNote: 'Fourth Sunday'\, not 'last Sunday': 2028 and 2029 both have five April Sundays and BARTG lists the fo urth in each. Also note this is 75 baud RTTY\, not the usual 45.45 baud.\n Rules: https://bartg.org.uk/bartg-sprint75-contests/ URL:https://bartg.org.uk/bartg-sprint75-contests/ CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270426T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270426T000000Z DTEND:20270426T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270426T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270426T174000Z DTEND:20270426T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20270428T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270428T000000Z DTEND:20270428T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270428T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270428T130000Z DTEND:20270428T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270428T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270428T190000Z DTEND:20270428T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270429T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270429T030000Z DTEND:20270429T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270429T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270429T070000Z DTEND:20270429T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270430T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270430T010000Z DTEND:20270430T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270430T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270430T014500Z DTEND:20270430T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270430T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270430T023000Z DTEND:20270430T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270430T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270430T200000Z DTEND:20270430T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-qrp-qrp-party-20270501T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270501T130000Z DTEND:20270501T190000Z SUMMARY:AGCW QRP/QRP Party DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m \nDuration: 6h\nExchange: RST + running number + class\nRules: https://www .agcw.de/contest/qrp-qrp/ URL:https://www.agcw.de/contest/qrp-qrp/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270503T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270503T000000Z DTEND:20270503T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270503T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270503T174000Z DTEND:20270503T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270504T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270504T000000Z DTEND:20270504T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270505T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270505T130000Z DTEND:20270505T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270505T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270505T190000Z DTEND:20270505T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270506T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270506T030000Z DTEND:20270506T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270506T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270506T070000Z DTEND:20270506T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270507T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270507T010000Z DTEND:20270507T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270507T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270507T014500Z DTEND:20270507T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270507T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270507T023000Z DTEND:20270507T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270507T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270507T200000Z DTEND:20270507T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270508T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270508T120000Z DTEND:20270509T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270510T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270510T000000Z DTEND:20270510T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270510T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270510T000000Z DTEND:20270510T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270510T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270510T174000Z DTEND:20270510T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270512T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270512T130000Z DTEND:20270512T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270512T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270512T190000Z DTEND:20270512T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270513T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270513T030000Z DTEND:20270513T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270513T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270513T070000Z DTEND:20270513T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270514T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270514T010000Z DTEND:20270514T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270514T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270514T014500Z DTEND:20270514T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270514T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270514T023000Z DTEND:20270514T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270514T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270514T200000Z DTEND:20270514T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270517T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270517T000000Z DTEND:20270517T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270517T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270517T174000Z DTEND:20270517T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270519T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270519T130000Z DTEND:20270519T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270519T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270519T190000Z DTEND:20270519T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270520T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270520T030000Z DTEND:20270520T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270520T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270520T070000Z DTEND:20270520T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270521T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270521T010000Z DTEND:20270521T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270521T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270521T014500Z DTEND:20270521T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270521T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270521T023000Z DTEND:20270521T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270521T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270521T200000Z DTEND:20270521T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270524T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270524T000000Z DTEND:20270524T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270524T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270524T174000Z DTEND:20270524T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20270526T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270526T000000Z DTEND:20270526T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270526T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270526T130000Z DTEND:20270526T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270526T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270526T190000Z DTEND:20270526T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270527T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270527T030000Z DTEND:20270527T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270527T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270527T070000Z DTEND:20270527T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270528T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270528T010000Z DTEND:20270528T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270528T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270528T014500Z DTEND:20270528T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270528T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270528T023000Z DTEND:20270528T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270528T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270528T200000Z DTEND:20270528T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cq-wpx-cw-20270529T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270529T000000Z DTEND:20270530T235900Z SUMMARY:CQ WW WPX Contest\, CW (unverified) DESCRIPTION:Sponsor: CQ Magazine\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\ , 15m\, 10m\nBand note: Only the 1.8\, 3.5\, 7\, 14\, 21 and 28 MHz bands may be used\nDuration: 47h 59m\nExchange: not recorded yet — see the spo nsor's rules below\nNote: CONFIRM against sponsor rules before publishing. \nUNVERIFIED: these dates have not yet been checked against the sponsor's own published rules. Confirm before you rely on them.\nRules: https://www. cqwpx.com/rules.htm URL:https://www.cqwpx.com/rules.htm CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270531T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270531T000000Z DTEND:20270531T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270531T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270531T174000Z DTEND:20270531T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270602T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270602T130000Z DTEND:20270602T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270602T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270602T190000Z DTEND:20270602T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270603T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270603T030000Z DTEND:20270603T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270603T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270603T070000Z DTEND:20270603T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-tdw-20270604T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270604T000000Z DTEND:20270606T235900Z SUMMARY:PODXS 070 Club Three Day Weekend (TDW) DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 71h 59m\nExchange: Members: 07 0 Club number. Non-members: 0000 in place of a club number.\nLogs due: 202 7-06-13\nNote: 'First weekend ENDING in June' is why this anchors on the f irst SUNDAY of June and counts backwards to the Friday\, rather than ancho ring on a Friday in June. The club's own table proves the distinction matt ers: it lists 31-May-30 and 30-May-31\, where the contest starts in May.\n Rules: https://www.podxs070.com/o7o-club-sponsored-contests/three-day-week end URL:https://www.podxs070.com/o7o-club-sponsored-contests/three-day-weekend CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270604T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270604T010000Z DTEND:20270604T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270604T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270604T014500Z DTEND:20270604T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270604T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270604T023000Z DTEND:20270604T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270604T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270604T200000Z DTEND:20270604T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-digital-20270605T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270605T180000Z DTEND:20270606T235900Z SUMMARY:ARRL International Digital Contest DESCRIPTION:Sponsor: ARRL\nModes: Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Technicians are limited by FCC rules to 10 m an d 6 m\nDuration: 29h 59m\nExchange: not recorded yet — see the sponsor's rules below\nRules: http://www.arrl.org/arrl-digital-contest URL:http://www.arrl.org/arrl-digital-contest CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270607T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270607T000000Z DTEND:20270607T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270607T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270607T174000Z DTEND:20270607T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270608T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270608T000000Z DTEND:20270608T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270609T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270609T130000Z DTEND:20270609T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270609T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270609T190000Z DTEND:20270609T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270610T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270610T030000Z DTEND:20270610T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270610T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270610T070000Z DTEND:20270610T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270611T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270611T010000Z DTEND:20270611T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270611T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270611T014500Z DTEND:20270611T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270611T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270611T023000Z DTEND:20270611T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270611T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270611T200000Z DTEND:20270611T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270612T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270612T120000Z DTEND:20270613T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20270612T1400@contestcal DTSTAMP:20260817T034254Z DTSTART:20270612T140000Z DTEND:20270612T170000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 3h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-vhf-uhf-20270612T1700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270612T170000Z DTEND:20270612T180000Z SUMMARY:AGCW VHF/UHF Contest DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 2m\, 70cm\nDuration: 1h\nEx change: RST + running number + locator\nNote: Four dates a year\, each wit h two back-to-back sessions on different bands: the first session is 2 m o nly\, the second 70 cm only. Encoded as two sessions off one anchor\, so e ight occurrences a year. The per-session band split is not expressible in the current schema -- both bands are listed at contest level.\nRules: http s://www.agcw.de/contest/vhf-uhf/ URL:https://www.agcw.de/contest/vhf-uhf/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-june-vhf-20270612T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270612T180000Z DTEND:20270614T025900Z SUMMARY:ARRL June VHF Contest DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 6m\, 2m\, 1.25m\, 70cm\, 33 cm\, 23cm\, 13cm\, 3cm\nBand note: All authorized frequencies above 50 MHz \nDuration: 32h 59m\nExchange: not recorded yet — see the sponsor's rule s below\nRules: http://www.arrl.org/june-vhf URL:http://www.arrl.org/june-vhf CATEGORIES:Mixed STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270614T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270614T000000Z DTEND:20270614T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270614T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270614T000000Z DTEND:20270614T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270614T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270614T174000Z DTEND:20270614T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270616T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270616T130000Z DTEND:20270616T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270616T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270616T190000Z DTEND:20270616T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270617T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270617T030000Z DTEND:20270617T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270617T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270617T070000Z DTEND:20270617T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270618T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270618T010000Z DTEND:20270618T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270618T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270618T014500Z DTEND:20270618T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270618T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270618T023000Z DTEND:20270618T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270618T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270618T200000Z DTEND:20270618T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-kids-day-jun-20270619T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270619T180000Z DTEND:20270619T235900Z SUMMARY:ARRL Kids Day (June) DESCRIPTION:Sponsor: ARRL\nModes: SSB\nBands: 80m\, 40m\, 20m\, 17m\, 15m\, 12m\, 10m\nBand note: Suggested frequencies\; repeaters may also be used with the sponsor's permission\nDuration: 5h 59m\nExchange: not recorded ye t — see the sponsor's rules below\nRules: http://www.arrl.org/kids-day URL:http://www.arrl.org/kids-day CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:irts-80m-counties-20270620T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270620T130000Z DTEND:20270620T150000Z SUMMARY:IRTS 80m Counties Contest (unverified) DESCRIPTION:Sponsor: IRTS\nModes: CW\, SSB\nBands: 80m\nDuration: 2h\nExcha nge: not recorded yet — see the sponsor's rules below\nEligibility: Entr y limited to EI\, GI. K stations may be worked but cannot submit an entry. \nUNVERIFIED: these dates have not yet been checked against the sponsor's own published rules. Confirm before you rely on them.\nRules: https://www. irts.ie/ URL:https://www.irts.ie/ CATEGORIES:CW,SSB STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270621T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270621T000000Z DTEND:20270621T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270621T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270621T174000Z DTEND:20270621T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20270623T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270623T000000Z DTEND:20270623T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270623T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270623T130000Z DTEND:20270623T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270623T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270623T190000Z DTEND:20270623T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270624T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270624T030000Z DTEND:20270624T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270624T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270624T070000Z DTEND:20270624T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270625T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270625T010000Z DTEND:20270625T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270625T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270625T014500Z DTEND:20270625T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270625T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270625T023000Z DTEND:20270625T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270625T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270625T200000Z DTEND:20270625T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-field-day-20270626T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270626T180000Z DTEND:20270627T205900Z SUMMARY:ARRL Field Day DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 160m\, 80m\, 40m\, 20m\, 15 m\, 10m\, 6m\, 2m\, 1.25m\, 70cm\, 33cm\, 23cm\, 13cm\, 3cm\nBand note: 16 0-10 m excluding the 60\, 30\, 17 and 12 m bands\, plus all bands 50 MHz a nd above\nDuration: 26h 59m\nExchange: not recorded yet — see the sponso r's rules below\nRules: http://www.arrl.org/field-day URL:http://www.arrl.org/field-day CATEGORIES:Mixed STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270628T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270628T000000Z DTEND:20270628T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270628T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270628T174000Z DTEND:20270628T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270630T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270630T130000Z DTEND:20270630T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270630T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270630T190000Z DTEND:20270630T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270701T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270701T030000Z DTEND:20270701T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270701T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270701T070000Z DTEND:20270701T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270702T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270702T010000Z DTEND:20270702T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270702T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270702T014500Z DTEND:20270702T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270702T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270702T023000Z DTEND:20270702T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270702T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270702T200000Z DTEND:20270702T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:podxs-40m-firecracker-20270703T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270703T200000Z DTEND:20270704T195900Z SUMMARY:PODXS 070 Club 40M Firecracker Sprint DESCRIPTION:Sponsor: PODXS 070 Club\nModes: Digital (PSK31)\nBands: 40m\nDu ration: 23h 59m\nExchange: State/province/country (SPC)\nLogs due: 2027-07 -11\nNote: The 24-hour window is the outer bound\; maximum operating time is a six-hour block chosen by the entrant.\nRules: https://www.podxs070.co m/o7o-club-sponsored-contests/40m-firecracker-sprint URL:https://www.podxs070.com/o7o-club-sponsored-contests/40m-firecracker-sp rint CATEGORIES:Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270705T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270705T000000Z DTEND:20270705T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270705T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270705T174000Z DTEND:20270705T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270706T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270706T000000Z DTEND:20270706T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270707T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270707T130000Z DTEND:20270707T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270707T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270707T190000Z DTEND:20270707T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270708T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270708T030000Z DTEND:20270708T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270708T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270708T070000Z DTEND:20270708T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270709T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270709T010000Z DTEND:20270709T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270709T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270709T014500Z DTEND:20270709T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270709T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270709T023000Z DTEND:20270709T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270709T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270709T200000Z DTEND:20270709T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-iaru-hf-20270710T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270710T120000Z DTEND:20270711T115900Z SUMMARY:IARU HF World Championship DESCRIPTION:Sponsor: ARRL / IARU\nModes: CW\, SSB\nBands: 160m\, 80m\, 40m\ , 20m\, 15m\, 10m\nDuration: 23h 59m\nExchange: not recorded yet — see t he sponsor's rules below\nRules: http://www.arrl.org/iaru-hf-world-champio nship URL:http://www.arrl.org/iaru-hf-world-championship CATEGORIES:CW,SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270710T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270710T120000Z DTEND:20270711T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270712T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270712T000000Z DTEND:20270712T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270712T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270712T000000Z DTEND:20270712T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270712T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270712T174000Z DTEND:20270712T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270714T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270714T130000Z DTEND:20270714T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270714T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270714T190000Z DTEND:20270714T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270715T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270715T030000Z DTEND:20270715T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270715T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270715T070000Z DTEND:20270715T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270716T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270716T010000Z DTEND:20270716T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270716T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270716T014500Z DTEND:20270716T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270716T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270716T023000Z DTEND:20270716T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270716T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270716T200000Z DTEND:20270716T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:naqp-rtty-20270717T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270717T180000Z DTEND:20270718T055900Z SUMMARY:North American QSO Party\, RTTY DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: RTTY\nBands: 16 0m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + stat e/province/country\nNote: Demonstrates that 'last Saturday' and 'last full weekend' are distinct rules. Same distinction likely resolves the CQ 160 SSB ambiguity.\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270719T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270719T000000Z DTEND:20270719T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270719T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270719T174000Z DTEND:20270719T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270721T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270721T130000Z DTEND:20270721T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270721T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270721T190000Z DTEND:20270721T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270722T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270722T030000Z DTEND:20270722T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270722T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270722T070000Z DTEND:20270722T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270723T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270723T010000Z DTEND:20270723T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270723T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270723T014500Z DTEND:20270723T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270723T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270723T023000Z DTEND:20270723T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270723T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270723T200000Z DTEND:20270723T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:rsgb-iota-20270724T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270724T120000Z DTEND:20270725T120000Z SUMMARY:RSGB IOTA Contest DESCRIPTION:Sponsor: RSGB Contest Committee\nModes: CW\, SSB\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 24h\nExchange: RST + serial\; island stat ions add IOTA reference\nLogs due: 2027-07-30\nRules: https://www.rsgbcc.o rg/hf/rules/2027/riota.shtml URL:https://www.rsgbcc.org/hf/rules/2027/riota.shtml CATEGORIES:CW,SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270726T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270726T000000Z DTEND:20270726T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270726T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270726T174000Z DTEND:20270726T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-sks-20270728T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270728T000000Z DTEND:20270728T020000Z SUMMARY:SKCC Straight Key Sprint (SKS) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nBand note: Suggested frequencies\, one per band\nDuration: 2h\nExchange: RST + QTH + name + SKCC number\nRules: http s://www.skccgroup.com/operating_activities/weekday_sprint/ URL:https://www.skccgroup.com/operating_activities/weekday_sprint/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270728T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270728T130000Z DTEND:20270728T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270728T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270728T190000Z DTEND:20270728T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270729T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270729T030000Z DTEND:20270729T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270729T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270729T070000Z DTEND:20270729T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270730T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270730T010000Z DTEND:20270730T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270730T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270730T014500Z DTEND:20270730T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270730T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270730T023000Z DTEND:20270730T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270730T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270730T200000Z DTEND:20270730T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:sarl-hf-phone-20270801T1400@contestcal DTSTAMP:20260817T034254Z DTSTART:20270801T140000Z DTEND:20270801T170000Z SUMMARY:SARL HF Phone Contest (unverified) DESCRIPTION:Sponsor: SARL\nModes: SSB\nBands: not yet read off the sponsor' s own rules\nDuration: 3h\nExchange: not recorded yet — see the sponsor' s rules below\nEligibility: Entry limited to ZS. K stations may be worked but cannot submit an entry.\nNote: UNVERIFIED. sarl.org.za returned 503 du ring research\; on 2026-08-16 its rules page served an expired TLS certifi cate. Bands are unrecorded for that reason\, not because the contest has n one. Confirm recurrence and whether DX entries are accepted.\nUNVERIFIED: these dates have not yet been checked against the sponsor's own published rules. Confirm before you rely on them.\nRules: https://www.sarl.org.za/ URL:https://www.sarl.org.za/ CATEGORIES:SSB STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270802T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270802T000000Z DTEND:20270802T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270802T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270802T174000Z DTEND:20270802T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:ars-spartan-sprint-20270803T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270803T000000Z DTEND:20270803T020000Z SUMMARY:ARS Spartan Sprint DESCRIPTION:Sponsor: Adventure Radio Society\nModes: CW\nBands: 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/province + power out put\nNote: CORRECTION (anchor): previously encoded as the first TUESDAY of the month. The sponsor's rule is the first MONDAY US local\, which lands on Tuesday UTC -- and those are different dates whenever the 1st falls on a Tuesday (Sep and Dec 2026). SPONSOR-ANCHORED LOCAL TIME: ARS publishes n o UTC time and states the event 'is always at these Local Times'\, so the UTC instant is what moves -- 0100Z Tuesday under EST\, 0000Z Tuesday under EDT. Resolved through America/New_York rather than hardcoded\, so DST is handled. ARS lists Eastern\, Central\, Mountain and Pacific times that are the same instant in every zone that observes DST\; Arizona\, which does n ot\, is the one place the sponsor's own table is inconsistent.\nRules: htt ps://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html URL:https://ars-qrp.com/Spartan_Sprint/Spartan_Sprint.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270804T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270804T130000Z DTEND:20270804T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270804T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270804T190000Z DTEND:20270804T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270805T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270805T030000Z DTEND:20270805T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270805T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270805T070000Z DTEND:20270805T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270806T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270806T010000Z DTEND:20270806T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270806T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270806T014500Z DTEND:20270806T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270806T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270806T023000Z DTEND:20270806T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270806T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270806T200000Z DTEND:20270806T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:tenten-summer-phone-20270807T0001@contestcal DTSTAMP:20260817T034254Z DTSTART:20270807T000100Z DTEND:20270808T235900Z SUMMARY:10-10 International Summer QSO Party (Phone) DESCRIPTION:Sponsor: 10-10 International Net\nModes: SSB\nBands: 10m\nDurat ion: 47h 58m\nExchange: Call sign + name + 10-10 number + QTH (state\, pro vince or country). Record 0 if the other station has no 10-10 number.\nRul es: https://www.ten-ten.org/index.php/activity/qso-party-rules URL:https://www.ten-ten.org/index.php/activity/qso-party-rules CATEGORIES:SSB STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-222-and-up-20270807T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270807T180000Z DTEND:20270808T180000Z SUMMARY:ARRL 222 MHz and Up Distance Contest (unverified) DESCRIPTION:Sponsor: ARRL\nModes: Mixed\nBands: 1.25m\, 70cm\, 33cm\, 23cm\ , 13cm\, 3cm\nBand note: 222 MHz through 241 GHz\nDuration: 24h\nExchange: not recorded yet — see the sponsor's rules below\nNote: Not listed in A RRL generic calendar. Rule inferred from published 2026 dates -- confirm.\ nUNVERIFIED: these dates have not yet been checked against the sponsor's o wn published rules. Confirm before you rely on them.\nRules: http://www.ar rl.org/222-mhz-and-up-distance-contest URL:http://www.arrl.org/222-mhz-and-up-distance-contest CATEGORIES:Mixed STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:naqp-cw-20270807T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270807T180000Z DTEND:20270808T055900Z SUMMARY:North American QSO Party\, CW DESCRIPTION:Sponsor: National Contest Journal (NCJ)\nModes: CW\nBands: 160m \, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 11h 59m\nExchange: Name + state/ province/country\nRules: https://www.ncjweb.com/NAQP-Rules.pdf URL:https://www.ncjweb.com/NAQP-Rules.pdf CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:4sqrp-sss-20270809T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270809T000000Z DTEND:20270809T020000Z SUMMARY:4 States QRP Group Second Sunday Sprint (SSS) DESCRIPTION:Sponsor: 4 States QRP Group\nModes: CW\, SSB\, Digital\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 2h\nExchange: RST + state/pr ovince/country + 4SQRP member number (power if non-member)\nNote: SPONSOR- ANCHORED LOCAL TIME. The anchor is the second SUNDAY and the sprint runs i nto Monday UTC. 4SQRP states the consequence itself: '7 PM until 9 PM cent ral time (CST or CDT\, whichever is in effect at the time). If you use UTC \, that time changes when we switch from CST to CDT (or vice versa).' Reso lved through America/Chicago\, so it is 0100Z Monday in winter and 0000Z M onday in summer.\nRules: https://www.4sqrp.com/SSS/sss_rules_revised_02_20 26.pdf URL:https://www.4sqrp.com/SSS/sss_rules_revised_02_2026.pdf CATEGORIES:CW,SSB,Digital STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270809T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270809T000000Z DTEND:20270809T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270809T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270809T174000Z DTEND:20270809T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270811T1300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270811T130000Z DTEND:20270811T140000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270811T1900@contestcal DTSTAMP:20260817T034254Z DTSTART:20270811T190000Z DTEND:20270811T200000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270812T0300@contestcal DTSTAMP:20260817T034254Z DTSTART:20270812T030000Z DTEND:20270812T040000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:cwops-cwt-20270812T0700@contestcal DTSTAMP:20260817T034254Z DTSTART:20270812T070000Z DTEND:20270812T080000Z SUMMARY:CWops Test (CWT) DESCRIPTION:Sponsor: CWops\nModes: CW\nBands: 160m\, 80m\, 40m\, 30m\, 20m\ , 17m\, 15m\, 12m\, 10m\, 6m\nDuration: 1h\nExchange: Members: name + CWop s number. Non-members: name + state/province/DX prefix.\nRules: https://cw ops.org/cwops-tests/ URL:https://cwops.org/cwops-tests/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-ft4-20270813T0100@contestcal DTSTAMP:20260817T034254Z DTSTART:20270813T010000Z DTEND:20270813T013000Z SUMMARY:NCCC FT4 Sprint (FT4 NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: FT8/FT 4 (FT4)\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 30m\nEx change: Grid square (following NA VHF\, WW Digi and ARRL IDC practice)\nNo te: NCCC describes these as 'nominal rules' that may be modified on a week ly basis\, and runs formal Ladder seasons interspersed with practice weeks . The 30-minute session slot itself is fixed.\nRules: https://www.ncccspri nt.com/ft4ns.html URL:https://www.ncccsprint.com/ft4ns.html CATEGORIES:FT8/FT4 STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-rtty-20270813T0145@contestcal DTSTAMP:20260817T034254Z DTSTART:20270813T014500Z DTEND:20270813T021500Z SUMMARY:NCCC RTTY Sprint (RTTY NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: RTTY\n Bands: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial numbe r + name + QTH (both callsigns required in the exchange)\nNote: NCCC descr ibes these as 'nominal rules' that may be modified on a weekly basis\, and runs formal Ladder seasons interspersed with practice weeks. The 30-minut e session slot itself is fixed.\nRules: https://ncccsprint.com/rttyns.html URL:https://ncccsprint.com/rttyns.html CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:nccc-ns-cw-20270813T0230@contestcal DTSTAMP:20260817T034254Z DTSTART:20270813T023000Z DTEND:20270813T030000Z SUMMARY:NCCC Sprint (NS) DESCRIPTION:Sponsor: Northern California Contest Club (NCCC)\nModes: CW\nBa nds: 160m\, 80m\, 40m\, 20m\, 15m\nDuration: 30m\nExchange: Serial number + name + QTH (both callsigns required in the exchange)\nNote: NCCC describ es these as 'nominal rules' that may be modified on a weekly basis\, and r uns formal Ladder seasons interspersed with practice weeks. The 30-minute session slot itself is fixed.\nRules: https://ncccsprint.com/rules.html URL:https://ncccsprint.com/rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270813T2000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270813T200000Z DTEND:20270813T210000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:skcc-wes-20270814T1200@contestcal DTSTAMP:20260817T034254Z DTSTART:20270814T120000Z DTEND:20270815T235900Z SUMMARY:SKCC Weekend Sprintathon (WES) DESCRIPTION:Sponsor: Straight Key Century Club\nModes: CW\nBands: 160m\, 80 m\, 40m\, 20m\, 15m\, 10m\, 6m\nDuration: 35h 59m\nExchange: RST + state/p rovince/country + name + SKCC number (C/T/S suffix for award holders)\nNot e: Older sources describe the anchor as 'the Saturday following the 6th'\, which differs from '2nd Saturday' in some months. SKCC's current page say s 2nd Saturday\; re-check if dates drift.\nRules: https://www.skccgroup.co m/operating_activities/weekend_sprintathon/ URL:https://www.skccgroup.com/operating_activities/weekend_sprintathon/ CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:arrl-rookie-roundup-rtty-20270815T1800@contestcal DTSTAMP:20260817T034254Z DTSTART:20270815T180000Z DTEND:20270815T235900Z SUMMARY:ARRL Rookie Roundup\, RTTY DESCRIPTION:Sponsor: ARRL\nModes: RTTY\nBands: 80m\, 40m\, 20m\, 15m\, 10m\ nDuration: 5h 59m\nExchange: not recorded yet — see the sponsor's rules below\nRules: http://www.arrl.org/rookie-roundup URL:http://www.arrl.org/rookie-roundup CATEGORIES:RTTY STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:k1usn-sst-20270816T0000@contestcal DTSTAMP:20260817T034254Z DTSTART:20270816T000000Z DTEND:20270816T010000Z SUMMARY:K1USN Slow Speed Test (SST) DESCRIPTION:Sponsor: K1USN Radio Club\nModes: CW\nBands: 160m\, 80m\, 40m\, 20m\, 15m\, 10m\nDuration: 1h\nExchange: Name + state/province/DX country \nNote: No formal log submission -- participants post scores to 3830scores .com.\nRules: https://www.k1usn.com/sst_rules.html URL:https://www.k1usn.com/sst_rules.html CATEGORIES:CW STATUS:CONFIRMED TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:agcw-zap-merit-20270816T1740@contestcal DTSTAMP:20260817T034254Z DTSTART:20270816T174000Z DTEND:20270816T183000Z SUMMARY:AGCW ZAP Merit Contest (ZMC) (unverified) DESCRIPTION:Sponsor: AGCW-DL\nModes: CW\nBands: 80m\nDuration: 50m\nExchang e: Callsign + date + time + RST (SWLs log RST of both stations in a QSO)\n Note: PARTLY UNVERIFIED. The recurrence (every Monday)\, the 1740 UTC pre- logging opening and the 1800 UTC telegram transmission are all quoted from AGCW. AGCW publishes NO closing time. The 1830 end stored here is a PLACE HOLDER so the record expands -- it is not a sponsor fact and must not be p resented as one. Confirm the session length with the ZMC manager before sh ipping. Points accumulate over a calendar year\; logs are due 31 January o f the following year.\nUNVERIFIED: these dates have not yet been checked a gainst the sponsor's own published rules. Confirm before you rely on them. \nRules: https://www.agcw.de/contest/tzap/ URL:https://www.agcw.de/contest/tzap/ CATEGORIES:CW STATUS:TENTATIVE TRANSP:TRANSPARENT END:VEVENT END:VCALENDAR