April 2028

← March This month May → DXpeditions

46 contests running this month. Names only at this zoom — tap a contest for its times, in your own clock or UTC. A contest running across midnight appears on every day it is on the air, with marking the days it continues into rather than starts. Days are UTC, so a contest opening 2200Z sits on the UTC date — which may be the evening before where you are.

Contests in April 2028, by day
Mon	Tue	Wed	Thu	Fri	Sat	Sun
273 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST) continues: SARL Equinox 6m African DX Entity Challenge (March)	281 continues: SARL Equinox 6m African DX Entity Challenge (March)	293 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) continues: SARL Equinox 6m African DX Entity Challenge (March)	302 CWops Test (CWT)×2 (2 sessions) continues: SARL Equinox 6m African DX Entity Challenge (March)	315 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS) continues: SARL Equinox 6m African DX Entity Challenge (March)	14 PODXS 070 Club New Member Jamboree SARL QRP Contest (Autumn leg) SP DX Contest continues: SARL Equinox 6m African DX Entity Challenge (March)	22 continues: SARL Equinox 6m African DX Entity Challenge (March) continues: SP DX Contest
33 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST) continues: SARL Equinox 6m African DX Entity Challenge (March)	45 ARS Spartan Sprint ZL Autumn and Winter Sprints, CW ZL Autumn and Winter Sprints, FT4 ZL Autumn and Winter Sprints, SSB continues: SARL Equinox 6m African DX Entity Challenge (March)	54 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 144 MHz continues: SARL Equinox 6m African DX Entity Challenge (March)	64 CWops Test (CWT)×2 (2 sessions) SARL 80 m QSO Party SKCC Straight Key Sprint Europe (SKSE) continues: SARL Equinox 6m African DX Entity Challenge (March)	75 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS) continues: SARL Equinox 6m African DX Entity Challenge (March)	88 Africa FT4 DX Contest Georgia QSO Party IG-RY World Wide RTTY Contest Japan International DX Contest, CW New Mexico QSO Party OK/OM DX Contest, SSB SKCC Weekend Sprintathon (WES) continues: SARL Equinox 6m African DX Entity Challenge (March)	98 Georgia QSO Party×2 (2 sessions) ZS4 QSO Party continues: IG-RY World Wide RTTY Contest continues: Japan International DX Contest, CW continues: New Mexico QSO Party continues: OK/OM DX Contest, SSB continues: SARL Equinox 6m African DX Entity Challenge (March) continues: SKCC Weekend Sprintathon (WES)
104 4 States QRP Group Second Sunday Sprint (SSS) AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST) continues: SARL Equinox 6m African DX Entity Challenge (March)	115 DARC RTTY-Kurzcontest ZL Autumn and Winter Sprints, CW ZL Autumn and Winter Sprints, FT4 ZL Autumn and Winter Sprints, SSB continues: SARL Equinox 6m African DX Entity Challenge (March)	124 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 432 MHz continues: SARL Equinox 6m African DX Entity Challenge (March)	132 CWops Test (CWT)×2 (2 sessions) continues: SARL Equinox 6m African DX Entity Challenge (March)	145 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS) continues: SARL Equinox 6m African DX Entity Challenge (March)	155 ES Open HF Championship IARU Region 1 50 MHz MGM Contest Michigan QSO Party Ontario QSO Party continues: SARL Equinox 6m African DX Entity Challenge (March)	167 9A Activity Contest ARRL Rookie Roundup, SSB Ontario QSO Party×2 (2 sessions) Quebec QSO Party ÖVSV VHF/UHF/Microwave Activity Contest continues: IARU Region 1 50 MHz MGM Contest continues: Michigan QSO Party
172 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	185 Amatőr rádiózás világnapja RF-WD URH World Amateur Radio Day Contest HF (RF-WD RH) ZL Autumn and Winter Sprints, CW ZL Autumn and Winter Sprints, FT4 ZL Autumn and Winter Sprints, SSB	193 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 1296 MHz	201 CWops Test (CWT)×2 (2 sessions)	214 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	222 SARL Saturday 40 m Club Contest SP DX RTTY Contest	232 BARTG Sprint75 Contest continues: SP DX RTTY Contest
242 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	253 ZL Autumn and Winter Sprints, CW ZL Autumn and Winter Sprints, FT4 ZL Autumn and Winter Sprints, SSB	263 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint (SKS)	271 CWops Test (CWT)×2 (2 sessions)	284 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	293 ALL JA Contest Florida QSO Party Helvetia Contest	303 Florida QSO Party×2 (2 sessions) continues: ALL JA Contest continues: Helvetia Contest

Every session in April 202846

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95 sessions across 46 contests; repeats share a row.

Contests starting in April 2028
Contest	Date	Start	End	Duration	Mode	Band	Sponsor	Starts in
PODXS 070 Club New Member Jamboree	Sat 1 Apr	0000Z	2359Z	23h 59m	DigitalPSK31	80-10m	PODXS 070 Club	in 531 days
SARL QRP Contest (Autumn leg)	Sat 1 Apr	1330Z	1530Z	2h	SSBCW	40m/20m/10m	SARL	in 532 days
SP DX Contest	Sat 1 Apr	1500Z	1459Z Sun 2 Apr	23h 59m	SSBCW	160-10m	PZK / SP DX Club	in 532 days
K1USN Slow Speed Test (SST)8 sessions	Mon 3 AprFri 7 AprMon 10 AprFri 14 AprMon 17 AprFri 21 AprMon 24 AprFri 28 Apr	0000Z2000Z0000Z2000Z0000Z2000Z0000Z2000Z	0100Z2100Z0100Z2100Z0100Z2100Z0100Z2100Z	1h	CW	160-10m	K1USN Radio Club	in 533 daysin 538 daysin 540 daysin 545 daysin 547 daysin 552 daysin 554 daysin 559 days
AGCW ZAP Merit Contest (ZMC) unverified4 sessions	Mon 3 AprMon 10 AprMon 17 AprMon 24 Apr	1740Z1740Z1740Z1740Z	1830Z1830Z1830Z1830Z	50m	CW	80m	AGCW-DL	in 534 daysin 541 daysin 548 daysin 555 days
ARS Spartan Sprint	Tue 4 Apr	0000Z	0200Z	2h	CW	80-10m	Adventure Radio Society	in 534 days
ZL Autumn and Winter Sprints, CW4 sessions	Tue 4 AprTue 11 AprTue 18 AprTue 25 Apr	0800Z0800Z0800Z0800Z	0829Z0829Z0829Z0829Z	29m	CW	80m	NZART	in 535 daysin 542 daysin 549 daysin 556 days
ZL Autumn and Winter Sprints, SSB4 sessions	Tue 4 AprTue 11 AprTue 18 AprTue 25 Apr	0830Z0830Z0830Z0830Z	0859Z0859Z0859Z0859Z	29m	SSB	80m	NZART	in 535 daysin 542 daysin 549 daysin 556 days
ZL Autumn and Winter Sprints, FT44 sessions	Tue 4 AprTue 11 AprTue 18 AprTue 25 Apr	0900Z0900Z0900Z0900Z	0929Z0929Z0929Z0929Z	29m	FT8/FT4FT4	80m	NZART	in 535 daysin 542 daysin 549 daysin 556 days
A1Club Weekly Test (AWT)4 sessions	Wed 5 AprWed 12 AprWed 19 AprWed 26 Apr	1145Z1145Z1145Z1145Z	1300Z1300Z1300Z1300Z	1h 15m	CW	not recorded	A1 Club	in 536 daysin 543 daysin 550 daysin 557 days
CWops Test (CWT)16 sessions	Wed 5 AprWed 5 AprThu 6 AprThu 6 AprWed 12 AprWed 12 AprThu 13 AprThu 13 AprWed 19 AprWed 19 AprThu 20 AprThu 20 AprWed 26 AprWed 26 AprThu 27 AprThu 27 Apr	1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z	1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z	1h	CW	160-6m	CWops	in 536 daysin 536 daysin 536 daysin 537 daysin 543 daysin 543 daysin 543 daysin 544 daysin 550 daysin 550 daysin 550 daysin 551 daysin 557 daysin 557 daysin 557 daysin 558 days
VHF-UHF FT8 Activity: 144 MHz unverified	Wed 5 Apr	1700Z	2100Z	4h	FT8/FT4	2m	QSO BANAT Association (YO2KQT)	in 536 days
SARL 80 m QSO Party	Thu 6 Apr	1700Z	2000Z	3h	SSB	80m	SARL	in 537 days
SKCC Straight Key Sprint Europe (SKSE)	Thu 6 Apr	1900Z	2100Z	2h	CW	160-6m	Straight Key Century Club	in 537 days
NCCC FT4 Sprint (FT4 NS)4 sessions	Fri 7 AprFri 14 AprFri 21 AprFri 28 Apr	0100Z0100Z0100Z0100Z	0130Z0130Z0130Z0130Z	30m	FT8/FT4FT4	160-6m	Northern California Contest Club (NCCC)	in 537 daysin 544 daysin 551 daysin 558 days
NCCC RTTY Sprint (RTTY NS)4 sessions	Fri 7 AprFri 14 AprFri 21 AprFri 28 Apr	0145Z0145Z0145Z0145Z	0215Z0215Z0215Z0215Z	30m	RTTY	160-15m	Northern California Contest Club (NCCC)	in 537 daysin 544 daysin 551 daysin 558 days
NCCC Sprint (NS)4 sessions	Fri 7 AprFri 14 AprFri 21 AprFri 28 Apr	0230Z0230Z0230Z0230Z	0300Z0300Z0300Z0300Z	30m	CW	160-15m	Northern California Contest Club (NCCC)	in 537 daysin 544 daysin 551 daysin 558 days
Japan International DX Contest, CW	Sat 8 Apr	0700Z	1300Z Sun 9 Apr	30h	CW	160-10m	JIDX Contest Committee	in 539 days
IG-RY World Wide RTTY Contest	Sat 8 Apr	1200Z	1800Z Sun 9 Apr	30h	RTTYRTTY 45.45 baud	80-10m	Interest Group RTTY (IG-RY)	in 539 days
OK/OM DX Contest, SSB	Sat 8 Apr	1200Z	1159Z Sun 9 Apr	23h 59m	SSB	160-10m	CRK / SARA	in 539 days
SKCC Weekend Sprintathon (WES)	Sat 8 Apr	1200Z	2359Z Sun 9 Apr	35h 59m	CW	160-6m	Straight Key Century Club	in 539 days
New Mexico QSO Party	Sat 8 Apr	1400Z	0200Z Sun 9 Apr	12h	SSBCWDigitalFT8/FT4	160-2m	New Mexico QSO Party	in 539 days
Africa FT4 DX Contest	Sat 8 Apr	1500Z	1800Z	3h	FT8/FT4FT4	80m/40m/20m	SARL	in 539 days
Georgia QSO Party2 sessions	Sat 8 AprSun 9 Apr	1800Z1400Z	0359Z Sun 9 Apr2359Z	9h 59m	SSBCW	not recorded	Southeastern Contest Club and Southeast DX Club	in 539 daysin 540 days
ZS4 QSO Party	Sun 9 Apr	1400Z	1500Z	1h	CWSSB	40m	Sasolburg Amateur Radio Club	in 540 days
4 States QRP Group Second Sunday Sprint (SSS)	Mon 10 Apr	0000Z	0200Z	2h	CWSSBDigital	160-10m	4 States QRP Group	in 540 days
DARC RTTY-Kurzcontest	Tue 11 Apr	1800Z	1929Z	1h 29m	RTTYRTTY 45.45 baud	80m/40m	DARC	in 542 days
VHF-UHF FT8 Activity: 432 MHz unverified	Wed 12 Apr	1700Z	2100Z	4h	FT8/FT4	70cm	QSO BANAT Association (YO2KQT)	in 543 days
ES Open HF Championship	Sat 15 Apr	0500Z	0859Z	3h 59m	CWSSB	80m/40m	ERAU	in 545 days
IARU Region 1 50 MHz MGM Contest	Sat 15 Apr	1400Z	1400Z Sun 16 Apr	24h	DigitalMGM (machine generated modes)	6m	IARU Region 1 VHF+ Committee	in 546 days
Michigan QSO Party	Sat 15 Apr	1600Z	0400Z Sun 16 Apr	12h	SSBCW	80-10m	Mad River Radio Club	in 546 days
Ontario QSO Party2 sessions	Sat 15 AprSun 16 Apr	1800Z1200Z	0300Z Sun 16 Apr2000Z	9h8h	SSBCW	160-2m	Contest Club Ontario	in 546 daysin 547 days
9A Activity Contest	Sun 16 Apr	0700Z	1200Z	5h	CWSSBFM	6-23cm	HRS	in 547 days
ÖVSV VHF/UHF/Microwave Activity Contest	Sun 16 Apr	0700Z	1300Z	6h	CWSSBAMFM	6-3cm	ÖVSV	in 547 days
Quebec QSO Party	Sun 16 Apr	1300Z	2359Z	10h 59m	SSBCW	80-2m	Club Radio Amateur de l'Outaouais	in 547 days
ARRL Rookie Roundup, SSB	Sun 16 Apr	1800Z	2359Z	5h 59m	SSB	80-10m	ARRL	in 547 days
World Amateur Radio Day Contest HF (RF-WD RH)	Tue 18 Apr	1600Z	1659Z	59m	CWSSB	80m	MRASZ	in 549 days
Amatőr rádiózás világnapja RF-WD URH	Tue 18 Apr	1730Z	1829Z	59m	CWSSB	2m	MRASZ	in 549 days
VHF-UHF FT8 Activity: 1296 MHz unverified	Wed 19 Apr	1700Z	2100Z	4h	DigitalFT8	23cm	QSO BANAT Association (YO2KQT)	in 550 days
SP DX RTTY Contest	Sat 22 Apr	1200Z	1200Z Sun 23 Apr	24h	RTTY	80-10m	PK RVG	in 553 days
SARL Saturday 40 m Club Contest can't enter	Sat 22 Apr	1500Z	1600Z	1h	SSBCWRTTY	40m	SARL	in 553 days
BARTG Sprint75 Contest	Sun 23 Apr	1700Z	2059Z	3h 59m	RTTYRTTY 75 baud	80-10m	BARTG	in 554 days
SKCC Straight Key Sprint (SKS)	Wed 26 Apr	0000Z	0200Z	2h	CW	160-6m	Straight Key Century Club	in 556 days
ALL JA Contest can't enter	Sat 29 Apr	1200Z	1200Z Sun 30 Apr	24h	CWSSBFMAM	160-6m	JARL	in 560 days
Helvetia Contest	Sat 29 Apr	1300Z	1259Z Sun 30 Apr	23h 59m	CWSSBRTTYDigitalFT8/FT4PSK31, PSK63	160-10m	USKA	in 560 days
Florida QSO Party2 sessions	Sat 29 AprSun 30 Apr	1600Z1200Z	0159Z Sun 30 Apr2159Z	9h 59m	SSBCW	40-10m	Florida Contest Group	in 560 daysin 561 days

PODXS 070 Club New Member Jamboree
DigitalPSK31 · 80-10m · PODXS 070 Club
- 0000Z Sat 1 Apr → 2359Z · 23h 59min 531 days
SARL QRP Contest (Autumn leg)
SSBCW · 40m/20m/10m · SARL
- 1330Z Sat 1 Apr → 1530Z · 2hin 532 days
SP DX Contest
SSBCW · 160-10m · PZK / SP DX Club
- 1500Z Sat 1 Apr → 1459Z Sun 2 Apr · 23h 59min 532 days
K1USN Slow Speed Test (SST)
CW · 160-10m · K1USN Radio Club
- 0000Z Mon 3 Apr → 0100Z · 1hin 533 days
- 2000Z Fri 7 Apr → 2100Z · 1hin 538 days
- 0000Z Mon 10 Apr → 0100Z · 1hin 540 days
- 2000Z Fri 14 Apr → 2100Z · 1hin 545 days
- 0000Z Mon 17 Apr → 0100Z · 1hin 547 days
- 2000Z Fri 21 Apr → 2100Z · 1hin 552 days
- 0000Z Mon 24 Apr → 0100Z · 1hin 554 days
- 2000Z Fri 28 Apr → 2100Z · 1hin 559 days
AGCW ZAP Merit Contest (ZMC) unverified
CW · 80m · AGCW-DL
- 1740Z Mon 3 Apr → 1830Z · 50min 534 days
- 1740Z Mon 10 Apr → 1830Z · 50min 541 days
- 1740Z Mon 17 Apr → 1830Z · 50min 548 days
- 1740Z Mon 24 Apr → 1830Z · 50min 555 days
ARS Spartan Sprint
CW · 80-10m · Adventure Radio Society
- 0000Z Tue 4 Apr → 0200Z · 2hin 534 days
ZL Autumn and Winter Sprints, CW
CW · 80m · NZART
- 0800Z Tue 4 Apr → 0829Z · 29min 535 days
- 0800Z Tue 11 Apr → 0829Z · 29min 542 days
- 0800Z Tue 18 Apr → 0829Z · 29min 549 days
- 0800Z Tue 25 Apr → 0829Z · 29min 556 days
ZL Autumn and Winter Sprints, SSB
SSB · 80m · NZART
- 0830Z Tue 4 Apr → 0859Z · 29min 535 days
- 0830Z Tue 11 Apr → 0859Z · 29min 542 days
- 0830Z Tue 18 Apr → 0859Z · 29min 549 days
- 0830Z Tue 25 Apr → 0859Z · 29min 556 days
ZL Autumn and Winter Sprints, FT4
FT8/FT4FT4 · 80m · NZART
- 0900Z Tue 4 Apr → 0929Z · 29min 535 days
- 0900Z Tue 11 Apr → 0929Z · 29min 542 days
- 0900Z Tue 18 Apr → 0929Z · 29min 549 days
- 0900Z Tue 25 Apr → 0929Z · 29min 556 days
A1Club Weekly Test (AWT)
CW · A1 Club
- 1145Z Wed 5 Apr → 1300Z · 1h 15min 536 days
- 1145Z Wed 12 Apr → 1300Z · 1h 15min 543 days
- 1145Z Wed 19 Apr → 1300Z · 1h 15min 550 days
- 1145Z Wed 26 Apr → 1300Z · 1h 15min 557 days
CWops Test (CWT)
CW · 160-6m · CWops
- 1300Z Wed 5 Apr → 1400Z · 1hin 536 days
- 1900Z Wed 5 Apr → 2000Z · 1hin 536 days
- 0300Z Thu 6 Apr → 0400Z · 1hin 536 days
- 0700Z Thu 6 Apr → 0800Z · 1hin 537 days
- 1300Z Wed 12 Apr → 1400Z · 1hin 543 days
- 1900Z Wed 12 Apr → 2000Z · 1hin 543 days
- 0300Z Thu 13 Apr → 0400Z · 1hin 543 days
- 0700Z Thu 13 Apr → 0800Z · 1hin 544 days
- 1300Z Wed 19 Apr → 1400Z · 1hin 550 days
- 1900Z Wed 19 Apr → 2000Z · 1hin 550 days
- 0300Z Thu 20 Apr → 0400Z · 1hin 550 days
- 0700Z Thu 20 Apr → 0800Z · 1hin 551 days
- 1300Z Wed 26 Apr → 1400Z · 1hin 557 days
- 1900Z Wed 26 Apr → 2000Z · 1hin 557 days
- 0300Z Thu 27 Apr → 0400Z · 1hin 557 days
- 0700Z Thu 27 Apr → 0800Z · 1hin 558 days
VHF-UHF FT8 Activity: 144 MHz unverified
FT8/FT4 · 2m · QSO BANAT Association (YO2KQT)
- 1700Z Wed 5 Apr → 2100Z · 4hin 536 days
SARL 80 m QSO Party
SSB · 80m · SARL
- 1700Z Thu 6 Apr → 2000Z · 3hin 537 days
SKCC Straight Key Sprint Europe (SKSE)
CW · 160-6m · Straight Key Century Club
- 1900Z Thu 6 Apr → 2100Z · 2hin 537 days
NCCC FT4 Sprint (FT4 NS)
FT8/FT4FT4 · 160-6m · Northern California Contest Club (NCCC)
- 0100Z Fri 7 Apr → 0130Z · 30min 537 days
- 0100Z Fri 14 Apr → 0130Z · 30min 544 days
- 0100Z Fri 21 Apr → 0130Z · 30min 551 days
- 0100Z Fri 28 Apr → 0130Z · 30min 558 days
NCCC RTTY Sprint (RTTY NS)
RTTY · 160-15m · Northern California Contest Club (NCCC)
- 0145Z Fri 7 Apr → 0215Z · 30min 537 days
- 0145Z Fri 14 Apr → 0215Z · 30min 544 days
- 0145Z Fri 21 Apr → 0215Z · 30min 551 days
- 0145Z Fri 28 Apr → 0215Z · 30min 558 days
NCCC Sprint (NS)
CW · 160-15m · Northern California Contest Club (NCCC)
- 0230Z Fri 7 Apr → 0300Z · 30min 537 days
- 0230Z Fri 14 Apr → 0300Z · 30min 544 days
- 0230Z Fri 21 Apr → 0300Z · 30min 551 days
- 0230Z Fri 28 Apr → 0300Z · 30min 558 days
Japan International DX Contest, CW
CW · 160-10m · JIDX Contest Committee
- 0700Z Sat 8 Apr → 1300Z Sun 9 Apr · 30hin 539 days
IG-RY World Wide RTTY Contest
RTTYRTTY 45.45 baud · 80-10m · Interest Group RTTY (IG-RY)
- 1200Z Sat 8 Apr → 1800Z Sun 9 Apr · 30hin 539 days
OK/OM DX Contest, SSB
SSB · 160-10m · CRK / SARA
- 1200Z Sat 8 Apr → 1159Z Sun 9 Apr · 23h 59min 539 days
SKCC Weekend Sprintathon (WES)
CW · 160-6m · Straight Key Century Club
- 1200Z Sat 8 Apr → 2359Z Sun 9 Apr · 35h 59min 539 days
New Mexico QSO Party
SSBCWDigitalFT8/FT4 · 160-2m · New Mexico QSO Party
- 1400Z Sat 8 Apr → 0200Z Sun 9 Apr · 12hin 539 days
Africa FT4 DX Contest
FT8/FT4FT4 · 80m/40m/20m · SARL
- 1500Z Sat 8 Apr → 1800Z · 3hin 539 days
Georgia QSO Party
SSBCW · Southeastern Contest Club and Southeast DX Club
- 1800Z Sat 8 Apr → 0359Z Sun 9 Apr · 9h 59min 539 days
- 1400Z Sun 9 Apr → 2359Z · 9h 59min 540 days
ZS4 QSO Party
CWSSB · 40m · Sasolburg Amateur Radio Club
- 1400Z Sun 9 Apr → 1500Z · 1hin 540 days
4 States QRP Group Second Sunday Sprint (SSS)
CWSSBDigital · 160-10m · 4 States QRP Group
- 0000Z Mon 10 Apr → 0200Z · 2hin 540 days
DARC RTTY-Kurzcontest
RTTYRTTY 45.45 baud · 80m/40m · DARC
- 1800Z Tue 11 Apr → 1929Z · 1h 29min 542 days
VHF-UHF FT8 Activity: 432 MHz unverified
FT8/FT4 · 70cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 12 Apr → 2100Z · 4hin 543 days
ES Open HF Championship
CWSSB · 80m/40m · ERAU
- 0500Z Sat 15 Apr → 0859Z · 3h 59min 545 days
IARU Region 1 50 MHz MGM Contest
DigitalMGM (machine generated modes) · 6m · IARU Region 1 VHF+ Committee
- 1400Z Sat 15 Apr → 1400Z Sun 16 Apr · 24hin 546 days
Michigan QSO Party
SSBCW · 80-10m · Mad River Radio Club
- 1600Z Sat 15 Apr → 0400Z Sun 16 Apr · 12hin 546 days
Ontario QSO Party
SSBCW · 160-2m · Contest Club Ontario
- 1800Z Sat 15 Apr → 0300Z Sun 16 Apr · 9hin 546 days
- 1200Z Sun 16 Apr → 2000Z · 8hin 547 days
9A Activity Contest
CWSSBFM · 6-23cm · HRS
- 0700Z Sun 16 Apr → 1200Z · 5hin 547 days
ÖVSV VHF/UHF/Microwave Activity Contest
CWSSBAMFM · 6-3cm · ÖVSV
- 0700Z Sun 16 Apr → 1300Z · 6hin 547 days
Quebec QSO Party
SSBCW · 80-2m · Club Radio Amateur de l'Outaouais
- 1300Z Sun 16 Apr → 2359Z · 10h 59min 547 days
ARRL Rookie Roundup, SSB
SSB · 80-10m · ARRL
- 1800Z Sun 16 Apr → 2359Z · 5h 59min 547 days
World Amateur Radio Day Contest HF (RF-WD RH)
CWSSB · 80m · MRASZ
- 1600Z Tue 18 Apr → 1659Z · 59min 549 days
Amatőr rádiózás világnapja RF-WD URH
CWSSB · 2m · MRASZ
- 1730Z Tue 18 Apr → 1829Z · 59min 549 days
VHF-UHF FT8 Activity: 1296 MHz unverified
DigitalFT8 · 23cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 19 Apr → 2100Z · 4hin 550 days
SP DX RTTY Contest
RTTY · 80-10m · PK RVG
- 1200Z Sat 22 Apr → 1200Z Sun 23 Apr · 24hin 553 days
SARL Saturday 40 m Club Contest can't enter
SSBCWRTTY · 40m · SARL
- 1500Z Sat 22 Apr → 1600Z · 1hin 553 days
BARTG Sprint75 Contest
RTTYRTTY 75 baud · 80-10m · BARTG
- 1700Z Sun 23 Apr → 2059Z · 3h 59min 554 days
SKCC Straight Key Sprint (SKS)
CW · 160-6m · Straight Key Century Club
- 0000Z Wed 26 Apr → 0200Z · 2hin 556 days
ALL JA Contest can't enter
CWSSBFMAM · 160-6m · JARL
- 1200Z Sat 29 Apr → 1200Z Sun 30 Apr · 24hin 560 days
Helvetia Contest
CWSSBRTTYDigitalFT8/FT4PSK31, PSK63 · 160-10m · USKA
- 1300Z Sat 29 Apr → 1259Z Sun 30 Apr · 23h 59min 560 days
Florida QSO Party
SSBCW · 40-10m · Florida Contest Group
- 1600Z Sat 29 Apr → 0159Z Sun 30 Apr · 9h 59min 560 days
- 1200Z Sun 30 Apr → 2159Z · 9h 59min 561 days

April 2028

Every session in April 202846

AGCW ZAP Merit Contest (ZMC) unverified

VHF-UHF FT8 Activity: 144 MHz unverified

VHF-UHF FT8 Activity: 432 MHz unverified

VHF-UHF FT8 Activity: 1296 MHz unverified

SARL Saturday 40 m Club Contest can't enter

ALL JA Contest can't enter