May 2025

Every session in May 202544

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90 sessions across 44 contests; repeats share a row.

1. CWops Test (CWT)

   CW · 160-6m · CWops

   • 0300Z Thu 1 May → 0400Z · 1hended
   • 0700Z Thu 1 May → 0800Z · 1hended
   • 1300Z Wed 7 May → 1400Z · 1hended
   • 1900Z Wed 7 May → 2000Z · 1hended
   • 0300Z Thu 8 May → 0400Z · 1hended
   • 0700Z Thu 8 May → 0800Z · 1hended
   • 1300Z Wed 14 May → 1400Z · 1hended
   • 1900Z Wed 14 May → 2000Z · 1hended
   • 0300Z Thu 15 May → 0400Z · 1hended
   • 0700Z Thu 15 May → 0800Z · 1hended
   • 1300Z Wed 21 May → 1400Z · 1hended
   • 1900Z Wed 21 May → 2000Z · 1hended
   • 0300Z Thu 22 May → 0400Z · 1hended
   • 0700Z Thu 22 May → 0800Z · 1hended
   • 1300Z Wed 28 May → 1400Z · 1hended
   • 1900Z Wed 28 May → 2000Z · 1hended
   • 0300Z Thu 29 May → 0400Z · 1hended
   • 0700Z Thu 29 May → 0800Z · 1hended

2. All Austrian Exercise AOEE 80/40m can't enter

   CWSSB · 80m/40m · ÖVSV

   • 0500Z Thu 1 May → 0800Z · 3hended
   • 1400Z Thu 1 May → 1700Z · 3hended

3. AGCW QRP/QRP Party

   CW · 80-10m · AGCW-DL

   • 1300Z Thu 1 May → 1900Z · 6hended

4. SKCC Straight Key Sprint Europe (SKSE)

   CW · 160-6m · Straight Key Century Club

   • 1900Z Thu 1 May → 2100Z · 2hended

5. NCCC FT4 Sprint (FT4 NS)

   FT8/FT4FT4 · 160-6m · Northern California Contest Club (NCCC)

   • 0100Z Fri 2 May → 0130Z · 30mended
   • 0100Z Fri 9 May → 0130Z · 30mended
   • 0100Z Fri 16 May → 0130Z · 30mended
   • 0100Z Fri 23 May → 0130Z · 30mended
   • 0100Z Fri 30 May → 0130Z · 30mended

6. NCCC RTTY Sprint (RTTY NS)

   RTTY · 160-15m · Northern California Contest Club (NCCC)

   • 0145Z Fri 2 May → 0215Z · 30mended
   • 0145Z Fri 9 May → 0215Z · 30mended
   • 0145Z Fri 16 May → 0215Z · 30mended
   • 0145Z Fri 23 May → 0215Z · 30mended
   • 0145Z Fri 30 May → 0215Z · 30mended

7. NCCC Sprint (NS)

   CW · 160-15m · Northern California Contest Club (NCCC)

   • 0230Z Fri 2 May → 0300Z · 30mended
   • 0230Z Fri 9 May → 0300Z · 30mended
   • 0230Z Fri 16 May → 0300Z · 30mended
   • 0230Z Fri 23 May → 0300Z · 30mended
   • 0230Z Fri 30 May → 0300Z · 30mended

8. K1USN Slow Speed Test (SST)

   CW · 160-10m · K1USN Radio Club

   • 2000Z Fri 2 May → 2100Z · 1hended
   • 0000Z Mon 5 May → 0100Z · 1hended
   • 2000Z Fri 9 May → 2100Z · 1hended
   • 0000Z Mon 12 May → 0100Z · 1hended
   • 2000Z Fri 16 May → 2100Z · 1hended
   • 0000Z Mon 19 May → 0100Z · 1hended
   • 2000Z Fri 23 May → 2100Z · 1hended
   • 0000Z Mon 26 May → 0100Z · 1hended
   • 2000Z Fri 30 May → 2100Z · 1hended

9. Harry Angel Memorial Sprint

   SSBCW · 80m · WIA

   • 1000Z Sat 3 May → 1146Z · 1h 46mended

10. ARI International DX Contest

    CWSSBRTTY · 80-10m · ARI

    • 1200Z Sat 3 May → 1159Z Sun 4 May · 23h 59mended

11. 7th Call Area QSO Party

    SSBCWDigital · 160-10m · Central Oregon DX Club

    • 1300Z Sat 3 May → 0700Z Sun 4 May · 18hended

12. URH Magyar Kupa Rádióforgalmi Versenysorozat can't enter

    CWSSBFM · 2-3cm · MRASZ

    • 1400Z Sat 3 May → 1359Z Sun 4 May · 23h 59mended

13. Indiana QSO Party

    SSBCW · 160-10m · Hoosier DX and Contest Club

    • 1500Z Sat 3 May → 0259Z Sun 4 May · 11h 59mended

14. Delaware QSO Party

    SSBCWDigitalFT8/FT4 · First State Amateur Radio Club

    • 1700Z Sat 3 May → 2359Z Sun 4 May · 30h 59mended

15. New England QSO Party

    SSBCW · 80-10m · New England QSO Party

    • 2000Z Sat 3 May → 0500Z Sun 4 May · 9hended
    • 1300Z Sun 4 May → 2359Z · 10h 59mended

16. LRAL 4 May 80m Contest can't enter

    CWSSBFT8/FT4 · 80m · LRAL

    • 0400Z Sun 4 May → 0559Z · 1h 59mended
    • 0615Z Sun 4 May → 0714Z · 59mended

17. AWA Valve SSB QSO Party

    SSB · 80m/40m · AWASA

    • 1300Z Sun 4 May → 1700Z · 4hended

18. AGCW ZAP Merit Contest (ZMC) unverified

    CW · 80m · AGCW-DL

    • 1740Z Mon 5 May → 1830Z · 50mended
    • 1740Z Mon 12 May → 1830Z · 50mended
    • 1740Z Mon 19 May → 1830Z · 50mended
    • 1740Z Mon 26 May → 1830Z · 50mended

19. ARS Spartan Sprint

    CW · 80-10m · Adventure Radio Society

    • 0000Z Tue 6 May → 0200Z · 2hended

20. A1Club Weekly Test (AWT)

    CW · A1 Club

    • 1145Z Wed 7 May → 1300Z · 1h 15mended
    • 1145Z Wed 14 May → 1300Z · 1h 15mended
    • 1145Z Wed 21 May → 1300Z · 1h 15mended
    • 1145Z Wed 28 May → 1300Z · 1h 15mended

21. VHF-UHF FT8 Activity: 144 MHz unverified

    FT8/FT4 · 2m · QSO BANAT Association (YO2KQT)

    • 1700Z Wed 7 May → 2100Z · 4hended

22. FISTS Spring Saturday Sprint

    CW · 80-10m · FISTS CW Club (Americas Chapter)

    • 0000Z Sat 10 May → 2359Z · 23h 59mended

23. CQ-M International DX Contest

    CWSSB · 160-10m · SRR

    • 1200Z Sat 10 May → 1159Z Sun 11 May · 23h 59mended

24. SKCC Weekend Sprintathon (WES)

    CW · 160-6m · Straight Key Century Club

    • 1200Z Sat 10 May → 2359Z Sun 11 May · 35h 59mended

25. Alessandro Volta RTTY DX Contest

    RTTY · 80-10m · SSB and RTTY Club of COMO (A.R.I.)

    • 1200Z Sat 10 May → 1200Z Sun 11 May · 24hended

26. 4 States QRP Group Second Sunday Sprint (SSS)

    CWSSBDigital · 160-10m · 4 States QRP Group

    • 0000Z Mon 12 May → 0200Z · 2hended

27. DARC FT4 Contest

    FT8/FT4FT4 · 80m/40m · DARC

    • 1900Z Tue 13 May → 2029Z · 1h 29mended

28. Early Morning Coffee QSO Party

    SSB · 80m/40m · Bo Karoo Amateur Radio Club

    • 0400Z Wed 14 May → 0500Z · 1hended

29. VHF-UHF FT8 Activity: 432 MHz unverified

    FT8/FT4 · 70cm · QSO BANAT Association (YO2KQT)

    • 1700Z Wed 14 May → 2100Z · 4hended

30. ZS SOTA Activity Weekend

    Mixed · SOTA SA

    • 0000Z Sat 17 May → 2159Z Sun 18 May · 45h 59mended

31. NZART Sangster Shield

    CW · 80m · NZART

    • 0800Z Sat 17 May → 1100Z · 3hended

32. EU PSK DX Contest

    DigitalBPSK63 · 80-10m · European PSK Club

    • 1200Z Sat 17 May → 1200Z Sun 18 May · 24hended

33. His Majesty the King of Spain Contest, CW

    CW · 160-10m · URE

    • 1200Z Sat 17 May → 1159Z Sun 18 May · 23h 59mended

34. IARU Region 1 70 MHz MGM Contest

    DigitalMGM (machine generated modes) · 4m · IARU Region 1 VHF+ Committee

    • 1400Z Sat 17 May → 1400Z Sun 18 May · 24hended

35. FISTS Spring Sunday Sprint

    CW · 80-10m · FISTS CW Club (Americas Chapter)

    • 0000Z Sun 18 May → 2359Z · 23h 59mended

36. 9A Activity Contest

    CWSSBFM · 6-23cm · HRS

    • 0700Z Sun 18 May → 1200Z · 5hended

37. ÖVSV VHF/UHF/Microwave Activity Contest

    CWSSBAMFM · 6-3cm · ÖVSV

    • 0700Z Sun 18 May → 1300Z · 6hended

38. ZS3 QSO Party

    CWSSB · 40m · Northern Cape Amateur Radio Club

    • 1400Z Sun 18 May → 1500Z · 1hended

39. DARC HELL-Kurzcontest unverified

    DigitalHell · DARC

    • 1800Z Tue 20 May → 1859Z · 59mended

40. VHF-UHF FT8 Activity: 1296 MHz unverified

    DigitalFT8 · 23cm · QSO BANAT Association (YO2KQT)

    • 1700Z Wed 21 May → 2100Z · 4hended

41. SARL Wednesday 80 m Club Contest can't enter

    SSBCWRTTY · 80m · SARL

    • 1700Z Wed 21 May → 1800Z · 1hended

42. CQ WW WPX Contest, CW

    CW · 160-10m · CQ Magazine

    • 0000Z Sat 24 May → 2359Z Sun 25 May · 47h 59mended

43. SKCC Straight Key Sprint (SKS)

    CW · 160-6m · Straight Key Century Club

    • 0000Z Wed 28 May → 0200Z · 2hended

44. PODXS 070 Club Three Day Weekend (TDW)

    DigitalPSK31 · 160-6m · PODXS 070 Club

    • 0000Z Fri 30 May → 2359Z Sun 1 Jun · 71h 59mended