{
  "contest": {
    "id": "darc-10m",
    "name": "DARC 10m Contest",
    "sponsor": "DARC",
    "sponsor_home": "https://www.darc.de/der-club/referate/conteste/",
    "country": "DE",
    "summary": "A two-hour Sunday-morning sprint on ten metres alone, run whatever the solar cycle is doing, with DOKs as multipliers.",
    "modes": [
      "SSB",
      "CW"
    ],
    "bands": [
      "10m"
    ],
    "exchange": "RS(T) + serial from 001; German stations additionally send the DOK of the callsign used, or 'NM' if it has no DOK.",
    "power_categories": [
      {
        "name": "High Power"
      },
      {
        "name": "Low Power",
        "max_watts": 100
      }
    ],
    "log_format": "Cabrillo",
    "log_deadline_days": 7,
    "log_submit_url": "https://dxhf2.darc.de/~d10mlog/upload.cgi",
    "timezone": "",
    "local_rolling": false,
    "eligibility": {
      "scope": "worldwide",
      "verified": true,
      "note": "'Der DARC lädt alle Funkamateure der Welt zur Teilnahme am jährlichen DARC 10m Contest ein.' 'Zu arbeitende Stationen: jede, einmal pro in der Teilnahmeklasse erlaubte Betriebsart.' -- every station may be worked, once per mode the entered class allows."
    },
    "active_from": null,
    "active_until": null,
    "note": "The recurrence wording comes from DARC's own superseded pre-2023 Ausschreibung, retained below the current one on the same page; the current Ausschreibung prints a date and no rule. The two agree for 2026, and DARC's KW contest calendar prints the same 11 January.",
    "verified": true,
    "rules_url": "https://www.darc.de/der-club/referate/conteste/darc-10m-contest/regeln/",
    "rules_url_pattern": "",
    "rules_url_archived": "",
    "rules_url_checked": "2026-08-18",
    "source_note": "darc.de/der-club/referate/conteste/darc-10m-contest/regeln/. The rule is stated in the superseded Ausschreibung DARC keeps on the same page, 'Ausschreibung bis 2023': '1. Contest-Periode: Zweiter Sonntag im Januar, 0900-1059 UTC.' -- 'second Sunday in January.' The current Ausschreibung 2026 states only the instance: 'Termin - 11.01.26, 09:00 UTC - 10:59 UTC', which is that second Sunday. Betriebsarten und Bänder: 'CW: 28.000 - 28.190 kHz, SSB: 28.300 - 28.700 kHz'; 'Betriebsarten - SSB und CW'. Austausch: 'Rapport (RS bzw. RST), eine laufende Seriennummer startend mit 001, zusätzlich für DL-Stationen: DOK des verwendeten Rufzeichens oder \"NM\"'. Logs: 'Einsendeschluss: 18.01.26, 23:59 UTC', the seven days the general rules state. Verified 2026-08-18."
  },
  "rule": {
    "plain": "Second Sunday of January",
    "raw": {
      "type": "nth_weekday",
      "month": 1,
      "n": 2,
      "weekday": 6
    },
    "start": {
      "day_offset": 0,
      "time": "0900"
    },
    "end": {
      "day_offset": 0,
      "time": "1059"
    },
    "sessions": null
  },
  "next": [
    {
      "contest_id": "darc-10m",
      "name": "DARC 10m Contest",
      "start": "2027-01-10T09:00:00Z",
      "end": "2027-01-10T10:59:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 1.98,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "10m"
      ],
      "bands_note": "CW 28.000-28.190 kHz, SSB 28.300-28.700 kHz",
      "sponsor": "DARC",
      "rules_url": "https://www.darc.de/der-club/referate/conteste/darc-10m-contest/regeln/",
      "verified": true,
      "note": "The recurrence wording comes from DARC's own superseded pre-2023 Ausschreibung, retained below the current one on the same page; the current Ausschreibung prints a date and no rule. The two agree for 2026, and DARC's KW contest calendar prints the same 11 January.",
      "exchange": "RS(T) + serial from 001; German stations additionally send the DOK of the callsign used, or 'NM' if it has no DOK.",
      "country": "DE",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2027-01-17T10:59:00Z",
      "uid": "darc-10m-20270110T0900@contestcal",
      "start_date": "2027-01-10",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "10m"
      ],
      "duration_bucket": "lt2"
    },
    {
      "contest_id": "darc-10m",
      "name": "DARC 10m Contest",
      "start": "2028-01-09T09:00:00Z",
      "end": "2028-01-09T10:59:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 1.98,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "10m"
      ],
      "bands_note": "CW 28.000-28.190 kHz, SSB 28.300-28.700 kHz",
      "sponsor": "DARC",
      "rules_url": "https://www.darc.de/der-club/referate/conteste/darc-10m-contest/regeln/",
      "verified": true,
      "note": "The recurrence wording comes from DARC's own superseded pre-2023 Ausschreibung, retained below the current one on the same page; the current Ausschreibung prints a date and no rule. The two agree for 2026, and DARC's KW contest calendar prints the same 11 January.",
      "exchange": "RS(T) + serial from 001; German stations additionally send the DOK of the callsign used, or 'NM' if it has no DOK.",
      "country": "DE",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2028-01-16T10:59:00Z",
      "uid": "darc-10m-20280109T0900@contestcal",
      "start_date": "2028-01-09",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "10m"
      ],
      "duration_bucket": "lt2"
    },
    {
      "contest_id": "darc-10m",
      "name": "DARC 10m Contest",
      "start": "2029-01-14T09:00:00Z",
      "end": "2029-01-14T10:59:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 1.98,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "10m"
      ],
      "bands_note": "CW 28.000-28.190 kHz, SSB 28.300-28.700 kHz",
      "sponsor": "DARC",
      "rules_url": "https://www.darc.de/der-club/referate/conteste/darc-10m-contest/regeln/",
      "verified": true,
      "note": "The recurrence wording comes from DARC's own superseded pre-2023 Ausschreibung, retained below the current one on the same page; the current Ausschreibung prints a date and no rule. The two agree for 2026, and DARC's KW contest calendar prints the same 11 January.",
      "exchange": "RS(T) + serial from 001; German stations additionally send the DOK of the callsign used, or 'NM' if it has no DOK.",
      "country": "DE",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2029-01-21T10:59:00Z",
      "uid": "darc-10m-20290114T0900@contestcal",
      "start_date": "2029-01-14",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "10m"
      ],
      "duration_bucket": "lt2"
    },
    {
      "contest_id": "darc-10m",
      "name": "DARC 10m Contest",
      "start": "2030-01-13T09:00:00Z",
      "end": "2030-01-13T10:59:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 1.98,
      "modes": [
        "SSB",
        "CW"
      ],
      "submodes": [],
      "bands": [
        "10m"
      ],
      "bands_note": "CW 28.000-28.190 kHz, SSB 28.300-28.700 kHz",
      "sponsor": "DARC",
      "rules_url": "https://www.darc.de/der-club/referate/conteste/darc-10m-contest/regeln/",
      "verified": true,
      "note": "The recurrence wording comes from DARC's own superseded pre-2023 Ausschreibung, retained below the current one on the same page; the current Ausschreibung prints a date and no rule. The two agree for 2026, and DARC's KW contest calendar prints the same 11 January.",
      "exchange": "RS(T) + serial from 001; German stations additionally send the DOK of the callsign used, or 'NM' if it has no DOK.",
      "country": "DE",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2030-01-20T10:59:00Z",
      "uid": "darc-10m-20300113T0900@contestcal",
      "start_date": "2030-01-13",
      "mode_families": [
        "CW",
        "SSB"
      ],
      "band_families": [
        "10m"
      ],
      "duration_bucket": "lt2"
    }
  ]
}