April 2040

← 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 2040, by day
Mon	Tue	Wed	Thu	Fri	Sat	Sun
263 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST) continues: SARL Equinox 6m African DX Entity Challenge (March)	271 continues: SARL Equinox 6m African DX Entity Challenge (March)	284 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint (SKS) continues: SARL Equinox 6m African DX Entity Challenge (March)	292 CWops Test (CWT)×2 (2 sessions) continues: SARL Equinox 6m African DX Entity Challenge (March)	305 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)	311 continues: SARL Equinox 6m African DX Entity Challenge (March)	11 continues: SARL Equinox 6m African DX Entity Challenge (March)
23 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST) continues: SARL Equinox 6m African DX Entity Challenge (March)	35 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)	44 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)	54 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)	65 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)	74 PODXS 070 Club New Member Jamboree SARL QRP Contest (Autumn leg) SP DX Contest continues: SARL Equinox 6m African DX Entity Challenge (March)	83 ZS4 QSO Party continues: SARL Equinox 6m African DX Entity Challenge (March) continues: SP DX Contest
94 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)	105 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)	114 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)	122 CWops Test (CWT)×2 (2 sessions) continues: SARL Equinox 6m African DX Entity Challenge (March)	135 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)	148 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)	1510 9A Activity Contest ARRL Rookie Roundup, SSB Georgia QSO Party×2 (2 sessions) ÖVSV VHF/UHF/Microwave Activity Contest 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)
162 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	173 ZL Autumn and Winter Sprints, CW ZL Autumn and Winter Sprints, FT4 ZL Autumn and Winter Sprints, SSB	185 A1Club Weekly Test (AWT) Amatőr rádiózás világnapja RF-WD URH CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 1296 MHz World Amateur Radio Day Contest HF (RF-WD RH)	191 CWops Test (CWT)×2 (2 sessions)	204 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	214 ES Open HF Championship IARU Region 1 50 MHz MGM Contest Michigan QSO Party Ontario QSO Party	225 BARTG Sprint75 Contest Ontario QSO Party×2 (2 sessions) Quebec QSO Party continues: IARU Region 1 50 MHz MGM Contest continues: Michigan QSO Party
232 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	243 ZL Autumn and Winter Sprints, CW ZL Autumn and Winter Sprints, FT4 ZL Autumn and Winter Sprints, SSB	253 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint (SKS)	261 CWops Test (CWT)×2 (2 sessions)	274 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	285 ALL JA Contest Florida QSO Party Helvetia Contest SARL Saturday 40 m Club Contest SP DX RTTY Contest	294 Florida QSO Party×2 (2 sessions) continues: ALL JA Contest continues: Helvetia Contest continues: SP DX RTTY Contest
302 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	12 AGCW QRP/QRP Party All Austrian Exercise AOEE 80/40m×2 (2 sessions)	23 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 144 MHz	32 CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint Europe (SKSE)	45 K1USN Slow Speed Test (SST) LRAL 4 May 80m Contest×2 (2 sessions) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	57 7th Call Area QSO Party ARI International DX Contest Delaware QSO Party Harry Angel Memorial Sprint Indiana QSO Party New England QSO Party URH Magyar Kupa Rádióforgalmi Versenysorozat	67 AWA Valve SSB QSO Party New England QSO Party×2 (2 sessions) continues: 7th Call Area QSO Party continues: ARI International DX Contest continues: Delaware QSO Party continues: Indiana QSO Party continues: URH Magyar Kupa Rádióforgalmi Versenysorozat

Every session in April 204046

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97 sessions across 46 contests; repeats share a row.

Contests starting in April 2040
Contest	Date	Start	End	Duration	Mode	Band	Sponsor	Starts in
K1USN Slow Speed Test (SST)9 sessions	Mon 2 AprFri 6 AprMon 9 AprFri 13 AprMon 16 AprFri 20 AprMon 23 AprFri 27 AprMon 30 Apr	0000Z2000Z0000Z2000Z0000Z2000Z0000Z2000Z0000Z	0100Z2100Z0100Z2100Z0100Z2100Z0100Z2100Z0100Z	1h	CW	160-10m	K1USN Radio Club	in 4911 daysin 4916 daysin 4918 daysin 4923 daysin 4925 daysin 4930 daysin 4932 daysin 4937 daysin 4939 days
AGCW ZAP Merit Contest (ZMC) unverified5 sessions	Mon 2 AprMon 9 AprMon 16 AprMon 23 AprMon 30 Apr	1740Z1740Z1740Z1740Z1740Z	1830Z1830Z1830Z1830Z1830Z	50m	CW	80m	AGCW-DL	in 4912 daysin 4919 daysin 4926 daysin 4933 daysin 4940 days
ARS Spartan Sprint	Tue 3 Apr	0000Z	0200Z	2h	CW	80-10m	Adventure Radio Society	in 4912 days
ZL Autumn and Winter Sprints, CW4 sessions	Tue 3 AprTue 10 AprTue 17 AprTue 24 Apr	0800Z0800Z0800Z0800Z	0829Z0829Z0829Z0829Z	29m	CW	80m	NZART	in 4912 daysin 4919 daysin 4926 daysin 4933 days
ZL Autumn and Winter Sprints, SSB4 sessions	Tue 3 AprTue 10 AprTue 17 AprTue 24 Apr	0830Z0830Z0830Z0830Z	0859Z0859Z0859Z0859Z	29m	SSB	80m	NZART	in 4912 daysin 4919 daysin 4926 daysin 4933 days
ZL Autumn and Winter Sprints, FT44 sessions	Tue 3 AprTue 10 AprTue 17 AprTue 24 Apr	0900Z0900Z0900Z0900Z	0929Z0929Z0929Z0929Z	29m	FT8/FT4FT4	80m	NZART	in 4912 daysin 4919 daysin 4926 daysin 4933 days
A1Club Weekly Test (AWT)4 sessions	Wed 4 AprWed 11 AprWed 18 AprWed 25 Apr	1145Z1145Z1145Z1145Z	1300Z1300Z1300Z1300Z	1h 15m	CW	not recorded	A1 Club	in 4913 daysin 4920 daysin 4927 daysin 4934 days
CWops Test (CWT)16 sessions	Wed 4 AprWed 4 AprThu 5 AprThu 5 AprWed 11 AprWed 11 AprThu 12 AprThu 12 AprWed 18 AprWed 18 AprThu 19 AprThu 19 AprWed 25 AprWed 25 AprThu 26 AprThu 26 Apr	1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z	1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z	1h	CW	160-6m	CWops	in 4914 daysin 4914 daysin 4914 daysin 4914 daysin 4921 daysin 4921 daysin 4921 daysin 4921 daysin 4928 daysin 4928 daysin 4928 daysin 4928 daysin 4935 daysin 4935 daysin 4935 daysin 4935 days
VHF-UHF FT8 Activity: 144 MHz unverified	Wed 4 Apr	1700Z	2100Z	4h	FT8/FT4	2m	QSO BANAT Association (YO2KQT)	in 4914 days
SARL 80 m QSO Party	Thu 5 Apr	1700Z	2000Z	3h	SSB	80m	SARL	in 4915 days
SKCC Straight Key Sprint Europe (SKSE)	Thu 5 Apr	1900Z	2100Z	2h	CW	160-6m	Straight Key Century Club	in 4915 days
NCCC FT4 Sprint (FT4 NS)4 sessions	Fri 6 AprFri 13 AprFri 20 AprFri 27 Apr	0100Z0100Z0100Z0100Z	0130Z0130Z0130Z0130Z	30m	FT8/FT4FT4	160-6m	Northern California Contest Club (NCCC)	in 4915 daysin 4922 daysin 4929 daysin 4936 days
NCCC RTTY Sprint (RTTY NS)4 sessions	Fri 6 AprFri 13 AprFri 20 AprFri 27 Apr	0145Z0145Z0145Z0145Z	0215Z0215Z0215Z0215Z	30m	RTTY	160-15m	Northern California Contest Club (NCCC)	in 4915 daysin 4922 daysin 4929 daysin 4936 days
NCCC Sprint (NS)4 sessions	Fri 6 AprFri 13 AprFri 20 AprFri 27 Apr	0230Z0230Z0230Z0230Z	0300Z0300Z0300Z0300Z	30m	CW	160-15m	Northern California Contest Club (NCCC)	in 4915 daysin 4922 daysin 4929 daysin 4936 days
PODXS 070 Club New Member Jamboree	Sat 7 Apr	0000Z	2359Z	23h 59m	DigitalPSK31	80-10m	PODXS 070 Club	in 4916 days
SARL QRP Contest (Autumn leg)	Sat 7 Apr	1330Z	1530Z	2h	SSBCW	40m/20m/10m	SARL	in 4917 days
SP DX Contest	Sat 7 Apr	1500Z	1459Z Sun 8 Apr	23h 59m	SSBCW	160-10m	PZK / SP DX Club	in 4917 days
ZS4 QSO Party	Sun 8 Apr	1400Z	1500Z	1h	CWSSB	40m	Sasolburg Amateur Radio Club	in 4918 days
4 States QRP Group Second Sunday Sprint (SSS)	Mon 9 Apr	0000Z	0200Z	2h	CWSSBDigital	160-10m	4 States QRP Group	in 4918 days
DARC RTTY-Kurzcontest	Tue 10 Apr	1800Z	1929Z	1h 29m	RTTYRTTY 45.45 baud	80m/40m	DARC	in 4920 days
VHF-UHF FT8 Activity: 432 MHz unverified	Wed 11 Apr	1700Z	2100Z	4h	FT8/FT4	70cm	QSO BANAT Association (YO2KQT)	in 4921 days
Japan International DX Contest, CW	Sat 14 Apr	0700Z	1300Z Sun 15 Apr	30h	CW	160-10m	JIDX Contest Committee	in 4923 days
IG-RY World Wide RTTY Contest	Sat 14 Apr	1200Z	1800Z Sun 15 Apr	30h	RTTYRTTY 45.45 baud	80-10m	Interest Group RTTY (IG-RY)	in 4924 days
OK/OM DX Contest, SSB	Sat 14 Apr	1200Z	1159Z Sun 15 Apr	23h 59m	SSB	160-10m	CRK / SARA	in 4924 days
SKCC Weekend Sprintathon (WES)	Sat 14 Apr	1200Z	2359Z Sun 15 Apr	35h 59m	CW	160-6m	Straight Key Century Club	in 4924 days
New Mexico QSO Party	Sat 14 Apr	1400Z	0200Z Sun 15 Apr	12h	SSBCWDigitalFT8/FT4	160-2m	New Mexico QSO Party	in 4924 days
Africa FT4 DX Contest	Sat 14 Apr	1500Z	1800Z	3h	FT8/FT4FT4	80m/40m/20m	SARL	in 4924 days
Georgia QSO Party2 sessions	Sat 14 AprSun 15 Apr	1800Z1400Z	0359Z Sun 15 Apr2359Z	9h 59m	SSBCW	not recorded	Southeastern Contest Club and Southeast DX Club	in 4924 daysin 4925 days
9A Activity Contest	Sun 15 Apr	0700Z	1200Z	5h	CWSSBFM	6-23cm	HRS	in 4924 days
ÖVSV VHF/UHF/Microwave Activity Contest	Sun 15 Apr	0700Z	1300Z	6h	CWSSBAMFM	6-3cm	ÖVSV	in 4924 days
ARRL Rookie Roundup, SSB	Sun 15 Apr	1800Z	2359Z	5h 59m	SSB	80-10m	ARRL	in 4925 days
World Amateur Radio Day Contest HF (RF-WD RH)	Wed 18 Apr	1600Z	1659Z	59m	CWSSB	80m	MRASZ	in 4928 days
VHF-UHF FT8 Activity: 1296 MHz unverified	Wed 18 Apr	1700Z	2100Z	4h	DigitalFT8	23cm	QSO BANAT Association (YO2KQT)	in 4928 days
Amatőr rádiózás világnapja RF-WD URH	Wed 18 Apr	1730Z	1829Z	59m	CWSSB	2m	MRASZ	in 4928 days
ES Open HF Championship	Sat 21 Apr	0500Z	0859Z	3h 59m	CWSSB	80m/40m	ERAU	in 4930 days
IARU Region 1 50 MHz MGM Contest	Sat 21 Apr	1400Z	1400Z Sun 22 Apr	24h	DigitalMGM (machine generated modes)	6m	IARU Region 1 VHF+ Committee	in 4931 days
Michigan QSO Party	Sat 21 Apr	1600Z	0400Z Sun 22 Apr	12h	SSBCW	80-10m	Mad River Radio Club	in 4931 days
Ontario QSO Party2 sessions	Sat 21 AprSun 22 Apr	1800Z1200Z	0300Z Sun 22 Apr2000Z	9h8h	SSBCW	160-2m	Contest Club Ontario	in 4931 daysin 4932 days
Quebec QSO Party	Sun 22 Apr	1300Z	2359Z	10h 59m	SSBCW	80-2m	Club Radio Amateur de l'Outaouais	in 4932 days
BARTG Sprint75 Contest	Sun 22 Apr	1700Z	2059Z	3h 59m	RTTYRTTY 75 baud	80-10m	BARTG	in 4932 days
SKCC Straight Key Sprint (SKS)	Wed 25 Apr	0000Z	0200Z	2h	CW	160-6m	Straight Key Century Club	in 4934 days
ALL JA Contest can't enter	Sat 28 Apr	1200Z	1200Z Sun 29 Apr	24h	CWSSBFMAM	160-6m	JARL	in 4938 days
SP DX RTTY Contest	Sat 28 Apr	1200Z	1200Z Sun 29 Apr	24h	RTTY	80-10m	PK RVG	in 4938 days
Helvetia Contest	Sat 28 Apr	1300Z	1259Z Sun 29 Apr	23h 59m	CWSSBRTTYDigitalFT8/FT4PSK31, PSK63	160-10m	USKA	in 4938 days
SARL Saturday 40 m Club Contest can't enter	Sat 28 Apr	1500Z	1600Z	1h	SSBCWRTTY	40m	SARL	in 4938 days
Florida QSO Party2 sessions	Sat 28 AprSun 29 Apr	1600Z1200Z	0159Z Sun 29 Apr2159Z	9h 59m	SSBCW	40-10m	Florida Contest Group	in 4938 daysin 4939 days

K1USN Slow Speed Test (SST)
CW · 160-10m · K1USN Radio Club
- 0000Z Mon 2 Apr → 0100Z · 1hin 4911 days
- 2000Z Fri 6 Apr → 2100Z · 1hin 4916 days
- 0000Z Mon 9 Apr → 0100Z · 1hin 4918 days
- 2000Z Fri 13 Apr → 2100Z · 1hin 4923 days
- 0000Z Mon 16 Apr → 0100Z · 1hin 4925 days
- 2000Z Fri 20 Apr → 2100Z · 1hin 4930 days
- 0000Z Mon 23 Apr → 0100Z · 1hin 4932 days
- 2000Z Fri 27 Apr → 2100Z · 1hin 4937 days
- 0000Z Mon 30 Apr → 0100Z · 1hin 4939 days
AGCW ZAP Merit Contest (ZMC) unverified
CW · 80m · AGCW-DL
- 1740Z Mon 2 Apr → 1830Z · 50min 4912 days
- 1740Z Mon 9 Apr → 1830Z · 50min 4919 days
- 1740Z Mon 16 Apr → 1830Z · 50min 4926 days
- 1740Z Mon 23 Apr → 1830Z · 50min 4933 days
- 1740Z Mon 30 Apr → 1830Z · 50min 4940 days
ARS Spartan Sprint
CW · 80-10m · Adventure Radio Society
- 0000Z Tue 3 Apr → 0200Z · 2hin 4912 days
ZL Autumn and Winter Sprints, CW
CW · 80m · NZART
- 0800Z Tue 3 Apr → 0829Z · 29min 4912 days
- 0800Z Tue 10 Apr → 0829Z · 29min 4919 days
- 0800Z Tue 17 Apr → 0829Z · 29min 4926 days
- 0800Z Tue 24 Apr → 0829Z · 29min 4933 days
ZL Autumn and Winter Sprints, SSB
SSB · 80m · NZART
- 0830Z Tue 3 Apr → 0859Z · 29min 4912 days
- 0830Z Tue 10 Apr → 0859Z · 29min 4919 days
- 0830Z Tue 17 Apr → 0859Z · 29min 4926 days
- 0830Z Tue 24 Apr → 0859Z · 29min 4933 days
ZL Autumn and Winter Sprints, FT4
FT8/FT4FT4 · 80m · NZART
- 0900Z Tue 3 Apr → 0929Z · 29min 4912 days
- 0900Z Tue 10 Apr → 0929Z · 29min 4919 days
- 0900Z Tue 17 Apr → 0929Z · 29min 4926 days
- 0900Z Tue 24 Apr → 0929Z · 29min 4933 days
A1Club Weekly Test (AWT)
CW · A1 Club
- 1145Z Wed 4 Apr → 1300Z · 1h 15min 4913 days
- 1145Z Wed 11 Apr → 1300Z · 1h 15min 4920 days
- 1145Z Wed 18 Apr → 1300Z · 1h 15min 4927 days
- 1145Z Wed 25 Apr → 1300Z · 1h 15min 4934 days
CWops Test (CWT)
CW · 160-6m · CWops
- 1300Z Wed 4 Apr → 1400Z · 1hin 4914 days
- 1900Z Wed 4 Apr → 2000Z · 1hin 4914 days
- 0300Z Thu 5 Apr → 0400Z · 1hin 4914 days
- 0700Z Thu 5 Apr → 0800Z · 1hin 4914 days
- 1300Z Wed 11 Apr → 1400Z · 1hin 4921 days
- 1900Z Wed 11 Apr → 2000Z · 1hin 4921 days
- 0300Z Thu 12 Apr → 0400Z · 1hin 4921 days
- 0700Z Thu 12 Apr → 0800Z · 1hin 4921 days
- 1300Z Wed 18 Apr → 1400Z · 1hin 4928 days
- 1900Z Wed 18 Apr → 2000Z · 1hin 4928 days
- 0300Z Thu 19 Apr → 0400Z · 1hin 4928 days
- 0700Z Thu 19 Apr → 0800Z · 1hin 4928 days
- 1300Z Wed 25 Apr → 1400Z · 1hin 4935 days
- 1900Z Wed 25 Apr → 2000Z · 1hin 4935 days
- 0300Z Thu 26 Apr → 0400Z · 1hin 4935 days
- 0700Z Thu 26 Apr → 0800Z · 1hin 4935 days
VHF-UHF FT8 Activity: 144 MHz unverified
FT8/FT4 · 2m · QSO BANAT Association (YO2KQT)
- 1700Z Wed 4 Apr → 2100Z · 4hin 4914 days
SARL 80 m QSO Party
SSB · 80m · SARL
- 1700Z Thu 5 Apr → 2000Z · 3hin 4915 days
SKCC Straight Key Sprint Europe (SKSE)
CW · 160-6m · Straight Key Century Club
- 1900Z Thu 5 Apr → 2100Z · 2hin 4915 days
NCCC FT4 Sprint (FT4 NS)
FT8/FT4FT4 · 160-6m · Northern California Contest Club (NCCC)
- 0100Z Fri 6 Apr → 0130Z · 30min 4915 days
- 0100Z Fri 13 Apr → 0130Z · 30min 4922 days
- 0100Z Fri 20 Apr → 0130Z · 30min 4929 days
- 0100Z Fri 27 Apr → 0130Z · 30min 4936 days
NCCC RTTY Sprint (RTTY NS)
RTTY · 160-15m · Northern California Contest Club (NCCC)
- 0145Z Fri 6 Apr → 0215Z · 30min 4915 days
- 0145Z Fri 13 Apr → 0215Z · 30min 4922 days
- 0145Z Fri 20 Apr → 0215Z · 30min 4929 days
- 0145Z Fri 27 Apr → 0215Z · 30min 4936 days
NCCC Sprint (NS)
CW · 160-15m · Northern California Contest Club (NCCC)
- 0230Z Fri 6 Apr → 0300Z · 30min 4915 days
- 0230Z Fri 13 Apr → 0300Z · 30min 4922 days
- 0230Z Fri 20 Apr → 0300Z · 30min 4929 days
- 0230Z Fri 27 Apr → 0300Z · 30min 4936 days
PODXS 070 Club New Member Jamboree
DigitalPSK31 · 80-10m · PODXS 070 Club
- 0000Z Sat 7 Apr → 2359Z · 23h 59min 4916 days
SARL QRP Contest (Autumn leg)
SSBCW · 40m/20m/10m · SARL
- 1330Z Sat 7 Apr → 1530Z · 2hin 4917 days
SP DX Contest
SSBCW · 160-10m · PZK / SP DX Club
- 1500Z Sat 7 Apr → 1459Z Sun 8 Apr · 23h 59min 4917 days
ZS4 QSO Party
CWSSB · 40m · Sasolburg Amateur Radio Club
- 1400Z Sun 8 Apr → 1500Z · 1hin 4918 days
4 States QRP Group Second Sunday Sprint (SSS)
CWSSBDigital · 160-10m · 4 States QRP Group
- 0000Z Mon 9 Apr → 0200Z · 2hin 4918 days
DARC RTTY-Kurzcontest
RTTYRTTY 45.45 baud · 80m/40m · DARC
- 1800Z Tue 10 Apr → 1929Z · 1h 29min 4920 days
VHF-UHF FT8 Activity: 432 MHz unverified
FT8/FT4 · 70cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 11 Apr → 2100Z · 4hin 4921 days
Japan International DX Contest, CW
CW · 160-10m · JIDX Contest Committee
- 0700Z Sat 14 Apr → 1300Z Sun 15 Apr · 30hin 4923 days
IG-RY World Wide RTTY Contest
RTTYRTTY 45.45 baud · 80-10m · Interest Group RTTY (IG-RY)
- 1200Z Sat 14 Apr → 1800Z Sun 15 Apr · 30hin 4924 days
OK/OM DX Contest, SSB
SSB · 160-10m · CRK / SARA
- 1200Z Sat 14 Apr → 1159Z Sun 15 Apr · 23h 59min 4924 days
SKCC Weekend Sprintathon (WES)
CW · 160-6m · Straight Key Century Club
- 1200Z Sat 14 Apr → 2359Z Sun 15 Apr · 35h 59min 4924 days
New Mexico QSO Party
SSBCWDigitalFT8/FT4 · 160-2m · New Mexico QSO Party
- 1400Z Sat 14 Apr → 0200Z Sun 15 Apr · 12hin 4924 days
Africa FT4 DX Contest
FT8/FT4FT4 · 80m/40m/20m · SARL
- 1500Z Sat 14 Apr → 1800Z · 3hin 4924 days
Georgia QSO Party
SSBCW · Southeastern Contest Club and Southeast DX Club
- 1800Z Sat 14 Apr → 0359Z Sun 15 Apr · 9h 59min 4924 days
- 1400Z Sun 15 Apr → 2359Z · 9h 59min 4925 days
9A Activity Contest
CWSSBFM · 6-23cm · HRS
- 0700Z Sun 15 Apr → 1200Z · 5hin 4924 days
ÖVSV VHF/UHF/Microwave Activity Contest
CWSSBAMFM · 6-3cm · ÖVSV
- 0700Z Sun 15 Apr → 1300Z · 6hin 4924 days
ARRL Rookie Roundup, SSB
SSB · 80-10m · ARRL
- 1800Z Sun 15 Apr → 2359Z · 5h 59min 4925 days
World Amateur Radio Day Contest HF (RF-WD RH)
CWSSB · 80m · MRASZ
- 1600Z Wed 18 Apr → 1659Z · 59min 4928 days
VHF-UHF FT8 Activity: 1296 MHz unverified
DigitalFT8 · 23cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 18 Apr → 2100Z · 4hin 4928 days
Amatőr rádiózás világnapja RF-WD URH
CWSSB · 2m · MRASZ
- 1730Z Wed 18 Apr → 1829Z · 59min 4928 days
ES Open HF Championship
CWSSB · 80m/40m · ERAU
- 0500Z Sat 21 Apr → 0859Z · 3h 59min 4930 days
IARU Region 1 50 MHz MGM Contest
DigitalMGM (machine generated modes) · 6m · IARU Region 1 VHF+ Committee
- 1400Z Sat 21 Apr → 1400Z Sun 22 Apr · 24hin 4931 days
Michigan QSO Party
SSBCW · 80-10m · Mad River Radio Club
- 1600Z Sat 21 Apr → 0400Z Sun 22 Apr · 12hin 4931 days
Ontario QSO Party
SSBCW · 160-2m · Contest Club Ontario
- 1800Z Sat 21 Apr → 0300Z Sun 22 Apr · 9hin 4931 days
- 1200Z Sun 22 Apr → 2000Z · 8hin 4932 days
Quebec QSO Party
SSBCW · 80-2m · Club Radio Amateur de l'Outaouais
- 1300Z Sun 22 Apr → 2359Z · 10h 59min 4932 days
BARTG Sprint75 Contest
RTTYRTTY 75 baud · 80-10m · BARTG
- 1700Z Sun 22 Apr → 2059Z · 3h 59min 4932 days
SKCC Straight Key Sprint (SKS)
CW · 160-6m · Straight Key Century Club
- 0000Z Wed 25 Apr → 0200Z · 2hin 4934 days
ALL JA Contest can't enter
CWSSBFMAM · 160-6m · JARL
- 1200Z Sat 28 Apr → 1200Z Sun 29 Apr · 24hin 4938 days
SP DX RTTY Contest
RTTY · 80-10m · PK RVG
- 1200Z Sat 28 Apr → 1200Z Sun 29 Apr · 24hin 4938 days
Helvetia Contest
CWSSBRTTYDigitalFT8/FT4PSK31, PSK63 · 160-10m · USKA
- 1300Z Sat 28 Apr → 1259Z Sun 29 Apr · 23h 59min 4938 days
SARL Saturday 40 m Club Contest can't enter
SSBCWRTTY · 40m · SARL
- 1500Z Sat 28 Apr → 1600Z · 1hin 4938 days
Florida QSO Party
SSBCW · 40-10m · Florida Contest Group
- 1600Z Sat 28 Apr → 0159Z Sun 29 Apr · 9h 59min 4938 days
- 1200Z Sun 29 Apr → 2159Z · 9h 59min 4939 days

April 2040

Every session in April 204046

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

ALL JA Contest can't enter

SARL Saturday 40 m Club Contest can't enter