The ARRL Contest Update for April 23, 2025 undefined

 

 

 

 

April 23, 2025

Editor:

iCom

 

In this Issue:

Upcoming Contests – Things to Do

Upcoming State QSO Parties

 

For those of you who enjoy state QSO parties, here are some upcoming events that might be of interest. You can also find more details in the Contests section.

 

April 26-27:

May 3-4:

10-10 International QSO Party

 

For 10-meter operators, there are two events of interest over the next two weekends. The 10-10 International QSO Party - Digital begins at 0001 UTC on Saturday, April 26 and concludes at 2359 UTC on Sunday, April 27. The following weekend, the 10-10 International QSO Party - CW begins at 0001 UTC on Saturday, May 3, and concludes at 2359 UTC on Sunday, May 4. For complete rules, visit .

 

UK/EI DX CW Contest

 

the United Kingdom and Ireland (UK/EI) DX CW Contest begins at 1200 UTC on Saturday, April 26 and concludes at 1200 UTC on Sunday, April 27. Participating stations can work everyone else for points and multipliers, but contacting as many UK and EI stations as possible can really boost your score. Stations within the UK and Ireland send a signal report and two-letter district code as their exchange. Stations located elsewhere send a signal report and a sequential serial number starting at one. Logs are due 24 hours after the conclusion of the event. Visit for complete rules.

 

Central States VHF Society Spring Sprints

 

The Central States VHF Society Spring Sprints continue with the 432 MHz Sprint on Wednesday, April 30 at 2300 UTC, concluding on Thursday, May 1 at 0600 UTC. Participants may operate no longer than 4 hours starting with their first contact. The Microwave Sprint is Saturday, May 3 from 8:00 local time - 2:00 PM local time. Full details and rules are available at .

 

 

Contest Summary

See the "Contests" section below for complete contest information.

 

April 24

April 25

April 26

April 27

April 28

April 29

April 30

May 1

May 2

May 3

May 4

May 5

May 6

May 7

 

RigSelect Radio Switch SO2R Controller

 

Results and Records

2024 ARRL November Sweepstakes Results

 

The results for the 2024 ARRL Sweepstakes CW and Phone events are available at .

 

 

Results articles, line scores, and log-checking reports are available on the website. To view the results, select the contest you'd like to view on the left-hand navigation bar of the page, and then select "Articles/Line Scores." Downloadable certificates are available by clicking on the word "Certificates" at the top of the page.

 

Technical Topics and Discussion

Geomagnetic Groud Currents in North America

 

On April 16, a severe geomagnetic storm caused electricity to flow through the rocks and soil of North America. Red zones in an animated map from NOAA show where voltages were the greatest. Geoelectric voltages were more than 70 times normal in the Appalachian Mountain range, Northern Minnesota, and Northwestern Canada. Texas and other western US states were relatively unscathed.

 

You can view the animated map and read more on the Spaceweather.com Website, at .

 

– Thanks to Ev Tupis, W2EV, via the Rochester VHF Group email reflector.

 

Image courtesy of Spaceweather.com

 

That's all for this time. Remember to send contesting-related stories, book reviews, tips, techniques, press releases, errata, schematics, club information, pictures, stories, blog links, and predictions to .

 

73, Paul, N1SFE

 

Contests

April 24, 2025 - May 7, 2025

 

An expanded, downloadable version of QST's is available as a PDF. Check the sponsors' website for information on operating time restrictions and other instructions.

 

HF CONTESTS

 

, Apr 24, 0300z to Apr 24, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Apr 26.

 

, Apr 24, 0700z to Apr 24, 0800z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Apr 26.

 

, Data, Apr 24, 1900z to Apr 24, 2030z; RTTY, PSK; Bands: 80; RST + Serial No.; Logs due: Apr 25.

 

, Apr 25, 0100z to Apr 25, 0130z; FT4; Bands: (see rules); 4-character grid square; Logs due: Apr 27.

 

, Apr 25, 0145z to Apr 25, 0215z; RTTY; Bands: 80, 40, 20, 15, 10; Name + (state/province/country); Logs due: Apr 27.

 

, Apr 25, 0230z to Apr 25, 0300z; CW; Bands: (see rules); Serial No. + Name + QTH; Logs due: Apr 27.

 

, Apr 25, 2000z to Apr 25, 2100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: Apr 27.

 

, Digital, Apr 26, 0001z to Apr 27, 2359z; Digital; Bands: 10; 10-10 Member: Name + 10-10 number + (state/province/country), Non-Member: Name + 0 + (state/province/country); Logs due: May 5.

 

, Apr 26, 0800z to Apr 27, 1159z; SSB; Bands: 80, 40, 10; RS + Serial No.; Logs due: May 4.

 

, Apr 26, 1200z to Apr 27, 1200z; RTTY; Bands: 80, 40, 20, 15, 10; SP: RST + 2-letter province, Non-SP: RST + QSO No.; Logs due: May 4.

 

, CW, Apr 26, 1200z to Apr 27, 1200z; CW; Bands: 80, 40, 20, 15, 10; UK/EI: RST + Serial No. + District Code, DX: RST + Serial No.; Logs due: Apr 28.

 

, Apr 26, 1300z to Apr 27, 1259z; CW, SSB, Digital; Bands: 160, 80, 40, 20, 15, 10; HB: RS(T) + 2-letter canton, non-HB: RS(T) + Serial No.; Logs due: May 5.

 

, Apr 26, 1600z to Apr 27, 2159z; CW, Phone; Bands: 40, 20, 15, 10; FL: RS(T) + county, W/VE: RS(T) + (state/province), DX: RS(T) + DXCC prefix; Logs due: May 7.

 

, Apr 27, 1300z to Apr 27, 1859z; CW, SSB; Bands: 80, 40, 20, 15, 10; SP/LO Oblasts: RS(T) + RDA district, Non-SP/LO: RS(T) + 4-character grid square; Logs due: May 7.

 

, Apr 27, 1700z to Apr 27, 2059z; 75 Baud RTTY; Bands: 80, 40, 20, 15, 10; Serial No.; Logs due: May 4.

 

, Apr 28, 0000z to Apr 28, 0100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: Apr 30.

 

, Apr 28, 1300z to Apr 28, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; RST + Name + (state/province/country) + Rig; Logs due: May 4.

 

, Apr 28, 1300z to Apr 28, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: May 1.

 

, Apr 28, 1630z to Apr 28, 1729z; CW; Bands: 80, 40; RST + Serial No.; Logs due: May 2.

 

, Apr 28, 1900z to Apr 28, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; RST + Name + (state/province/country) + Rig; Logs due: May 4.

 

, Apr 28, 1900z to Apr 28, 2100z; FT4; Bands: 80, 40, 20, 15, 10; Signal report; Logs due: Apr 29.

 

, Apr 28, 1900z to Apr 28, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: May 1.

 

, Apr 29, 0100z to Apr 29, 0159z; SSB; Bands: 160, 80, 40, 20, 15, 10, 6; RS + age group (OM, YL, Youth YL or Youth); Logs due: Apr 30.

 

, Apr 29, 0300z to Apr 29, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; RST + Name + (state/province/country) + Rig; Logs due: May 4.

 

, Apr 29, 0300z to Apr 29, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: May 1.

 

, Apr 29, 0800z to Apr 29, 0929z; CW, SSB, FT4; Bands: 80; CW/SSB: RS(T) + Outside Temperature (C), FT4: 4-character grid square; Logs due: Apr 30.

 

, Apr 30, 0230z to Apr 30, 0300z; SSB; Bands: 160, 80, 40, 20, 15; NA: Name + (state/province/country), non-NA: Name; Logs due: May 2.

 

, Apr 30, 1145z to Apr 30, 1300z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: RST + Name; Logs due: May 5.

 

, Apr 30, 1300z to Apr 30, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: May 3.

 

, Apr 30, 1700z to Apr 30, 1759z; CW; Bands: 40; RST + Serial No.; Logs due: May 2.

 

, Apr 30, 1800z to Apr 30, 1859z; CW; Bands: 80; RST + Serial No.; Logs due: May 2.

 

, Apr 30, 1900z to Apr 30, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: May 3.

 

, Apr 30, 2000z to Apr 30, 2100z; CW; Bands: 80; 6-Character grid square; Logs due: Apr 30.

 

, May 1, 0000z to May 2, 0300z; CW; Bands: 40; Maximum 13 wpm, RST + (state/province/country) + Name + (Member No./power); Logs due: May 8.

 

, May 1, 0300z to May 1, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: May 3.

 

, May 1, 0700z to May 1, 0800z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: May 3.

 

, May 1, 1300z to May 1, 1900z; CW; Bands: 80, 40, 20, 15, 10; RST + QSO No. + "/" + Class ID (A/B); Logs due: May 15.

 

, May 1, 1800z to May 1, 2200z; CW, SSB, FM, Digital; Bands: 10; RS(T) + 6-character grid square; Logs due: May 15.

 

, May 1, 1900z to May 1, 2100z; CW; Bands: 160, 80, 40, 20, 15, 10, 6; RST + (state/province/country) + Name + (SKCC No./"NONE"); Logs due: May 8.

 

, May 2, 0100z to May 2, 0130z; FT4; Bands: (see rules); 4-character grid square; Logs due: May 4.

 

, May 2, 0145z to May 2, 0215z; RTTY; Bands: 80, 40, 20, 15, 10; Name + (state/province/country); Logs due: May 4.

 

, May 2, 0230z to May 2, 0300z; CW; Bands: (see rules); Serial No. + Name + QTH; Logs due: May 4.

 

, May 2, 2000z to May 2, 2100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: May 4.

 

, May 3, 0001z to May 4, 2359z; CW; Bands: 10; 10-10 Member: Name + 10-10 number + (state/province/country), Non-Member: Name + 0 + (state/province/country); Logs due: May 12.

 

, May 3, 0300z to May 3, 0859z; CW, SSB; Bands: 80, 40, 20, 15, 10; RCC Members: RS(T) + "RCC" + member number, Non-Members: RS(T) + ITU Zone; Logs due: May 10.

 

, May 3, 1200z to May 4, 1159z; Phone, CW, RTTY; Bands: 80, 40, 20, 15, 10; I: RS(T) + 2-letter province, non-I: RS(T) + Serial No.; Logs due: May 10.

 

, May 3, 1200z to May 4, 1200z; PSK; Bands: 80, 40, 20, 15, 10, 2; RST + Serial No.; Logs due: Jun 4.

 

, May 3, 1300z to May 4, 0700z; CW, Phone, Digital (no FT8); Bands: 160, 80, 40, 20, 15, 10; 7th Area: RS(T) + 5-letter state/county code, non-7th Area: RS(T) + (state/province/DX); Logs due: May 14.

 

, May 3, 1500z to May 4, 0300z; Phone, CW; Bands: 160, 80, 40, 20, 15, 10; IN: RS(T) + county, non-IN: W/VE: RS(T) + (state/province), DX: RS(T) + "DX"; Logs due: Jun 1.

 

, May 3, 1700z to May 4, 2359z; Digital(CW/RTTY/Digital), Phone; Bands: 160, 80, 40, 20, 15, 10, VHF; DE: RS(T) + County, non-DE: RS(T) + (state/province/"DX"); Logs due: Jun 3.

 

, May 3, 2000z to May 4, 2359z; Phone, CW/Digital; Bands: 80, 40, 20, 15, 10; CT,ME,MA,NH,RI,VT: RS(T) + state + county, non-NE: RS(T) + (state/province/"DX"); Logs due: Jun 3.

 

, May 4, 1000z to May 4, 1400z; SSB; Bands: 40; British Isles: RS + serial no. + WAB square, Other: RS + serial no. + country; Logs due: May 14.

 

, May 4, 2300z to May 5, 0300z; CW, Phone; Bands: All, except WARC; Mie: RS(T) + age + "ME", non-Mie JA: RS(T) + age + "MEJ", non-Mie non-JA: RS(T) + age; Logs due: May 31.

 

, May 5, 0000z to May 5, 0100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: May 7.

 

, May 5, 1300z to May 5, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: May 8.

 

, May 5, 1630z to May 5, 1729z; CW; Bands: 80, 40; RST + Serial No.; Logs due: May 9.

 

, May 5, 1900z to May 5, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: May 8.

 

, May 6, 0000z to May 6, 0200z; CW; Bands: 80, 40, 20, 15, 10; RST + (state/province/country) + Power; Logs due: May 8.

 

, May 6, 0100z to May 6, 0159z; SSB; Bands: 160, 80, 40, 20, 15, 10, 6; RS + age group (OM, YL, Youth YL or Youth); Logs due: May 7.

 

, May 6, 0300z to May 6, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: May 8.

 

, May 7, 0230z to May 7, 0300z; SSB; Bands: 160, 80, 40, 20, 15; NA: Name + (state/province/country), non-NA: Name; Logs due: May 9.

 

, May 7, 1145z to May 7, 1300z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: RST + Name; Logs due: May 12.

 

, May 7, 1300z to May 7, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: May 10.

 

, May 7, 1700z to May 7, 1759z; CW; Bands: 40; RST + Serial No.; Logs due: May 9.

 

, May 7, 1800z to May 7, 1859z; CW; Bands: 80; RST + Serial No.; Logs due: May 9.

 

, May 7, 1900z to May 7, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: May 10.

 

VHF+ CONTESTS

 

, Apr 30, 2300z to May 1, 0600z; (not specified); Bands: 432; 4-character grid square; Logs due: May 14.

 

, May 3, 0600 local to May 4, 2359 local; Any; Bands: 2.3 GHz and up; 6-character Maidenhead locator; Logs due: May 28.

 

, May 3, 0800 local to May 3, 1400 local; not specified; Bands: All above 902 MHz; 6-character grid square; Logs due: May 17.

 

, May 7, 1700z to May 7, 2100z; FT8/4; Bands: 144 MHz; 4-character grid square; Logs due: May 12.

 

Geochron Global Operational Awareness

 

Log Due Dates

April 24

April 25

April 26

April 27

April 28

April 29

April 30

May 1

May 2

May 3

May 4

May 5

May 6

May 7

 

 

 

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