Contest Update Issue

The ARRL Contest Update for August 27, 2025 undefined

August 27, 2025


	ARRL Home Page


	Contest Calendar

In this Issue:

Upcoming Contests – Things to Do
Bulletins
Contest Summary
Sights and Sounds
Technical Topics and Discussion
Contests
Log Due Dates

Upcoming Contests – Things to Do

Upcoming State QSO Parties

State QSO party enthusiasts have 2 opportunities to participate this weekend. The Colorado QSO Party begins on August 30 at 1300 UTC, and concludes on August 31 at 0400 UTC, and the Kansas QSO Party begins on August 30 at 1400 UTC and concludes on August 31 at 2000 UTC.

Next weekend, the Tennessee QSO Party begins on September 7 at 1700 UTC, and concludes on September 8 at 0300 UTC. More information and rules for each event can be found on their respective web sites or in the Contests section below.

World Wide Digi DX Contest

For those who enjoy digital contesting using the FT4 and FT8 modes, the World Wide Digi DX Contest (WW Digi) begins on Saturday, August 30 at 1200 UTC, and concludes on Sunday, August 31 at 1159 UTC. In this contest, stations around the world contact as many amateurs in as many Maidenhead grid fields as possible. WW Digi is sponsored by a collaboration between the World Wide Radio Operators Foundation and the Slovenia Contest Club. For rules, visit https://ww-digi.com.

North American CW and RTTY Sprints

The North American CW and RTTY Sprints are coming up next month. The CW Sprint runs from 0000 to 0359 UTC on Sunday, September 14. The RTTY Sprint runs from 0000 to 0359 UTC on Sunday, September 21. Participants are reminded that these events occur on Saturday evenings in North America.

If you are new to sprinting, an article on the National Contest Journal North American Sprint website written by Jim George, N3BB, at ncjweb.com/sprint-scores/CW-Sprinting-N3BB.pdf is a great introduction to the event. For complete rules and contest details, visit ncjweb.com/Sprint-Rules.pdf.

Bulletins

No Changes to Multipliers in 2025 ARRL November Sweepstakes

In response to the Radio Amateurs of Canada’s recent addition of a new Yukon section, the ARRL Contest Advisory Committee is reviewing Canadian Section multipliers for ARRL contests that use Sections as multipliers. While this review is ongoing, the 2024 multiplier list will be used for all Section-based contests for the remainder of 2025. Stations located in Yukon should continue to send “TER” (territories) for the 2025 ARRL November Sweepstakes CW/SSB and ARRL 160-Meter contests.

WRTC 2026 Email Reflector

The World Radiosport Team Championship (WRTC) 2026 committee would like to remind anyone interested in the event (which will be held next July in parallel with the IARU HF World Championship), to subscribe to their email reflector to keep informed of the latest event news. Visit groups.io/g/wrtc2026-discuss to subscribe or to browse messages online.

– Thanks to Lee Volante, G0MTN

Contest Summary

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

August 28

CWops Test (CWT)

August 29

August 30

September 1

September 2

September 3

September 4

September 5

September 6

September 7

September 8

September 9

September 10

Sights and Sounds

WG3K’s Rover Experience in the ARRL June VHF Contest

Eric Christensen, WG3K, shared his rover operating experiences during the 2025 ARRL June VHF Contest on his blog, Spark’s Journal. You can read the blog entry at eric.aehe.us/2025-arrl-june-vhf-contest.html.

Technical Topics and Discussion

SkyRoof Version 1.20 Beta Now Available

Alex Shovkoplyas’, VE3NEA, latest version of SkyRoof software, which integrates both a software defined receiver (SDR) interface and amateur satellite tracking, is available at ve3nea.github.io/SkyRoof/index.html. The program provides detailed information about all amateur satellites, real-time tracking, and pass prediction. The program will work without an SDR or transceiver, but not all functions of the program will be available.

– Thanks to Adam Kuzych, VE6WMR

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 contest-update@arrl.org.

73, Paul, N1SFE

Contests

August 28, 2025 - September 10, 2025

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

HF CONTESTS

CWops Test (CWT), Aug 28, 0300z to Aug 28, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Aug 30.

CWops Test (CWT), Aug 28, 0700z to Aug 28, 0800z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Aug 30.

QRP Fox Hunt, Aug 29, 0100z to Aug 29, 0230z; CW; Bands: 20; RST + (state/province/country) + name + power output; Logs due: Aug 30.

NCCC FT4 Sprint, Aug 29, 0100z to Aug 29, 0130z; FT4; Bands: (see rules); 4-character grid square; Logs due: Aug 31.

Weekly RTTY Test, Aug 29, 0145z to Aug 29, 0215z; RTTY; Bands: 80, 40, 20, 15, 10; Name + (state/province/country); Logs due: Aug 31.

NCCC Sprint Ladder, Aug 29, 0230z to Aug 29, 0300z; CW; Bands: 160, 80, 40, 20, 15; Serial No. + Name + QTH; Logs due: Aug 31.

K1USN Slow Speed Test, Aug 29, 2000z to Aug 29, 2100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: Aug 31.

SCRY/RTTYOps WW RTTY Contest, Aug 29, 2200z to Aug 31, 2359z; RTTY; Bands: 160, 80, 40, 20, 15, 10; RST + 4-digit year license first issued; Logs due: Sep 7.

Feld Hell Sprint, Aug 30, 0000z to Aug 30, 2359z; Feld Hell; Bands: 160, 80, 40, 20, 15, 10, 6; (see rules); Logs due: Sep 3.

ALARA Contest, Aug 30, 0600z to Aug 31, 0559z; CW, Phone; Bands: 80, 40, 20, 15, 10; ALARA: RS(T) + Serial No. + ALARA Member + Name, non-ALARA: RS(T) + Serial No. + Name + (whether YL/OM/club station); Logs due: Sep 30.

U.S. Islands QSO Party, Aug 30, 1200z to Aug 31, 0300z; CW, Phone, Digital; Bands: 160, 80, 40, 20, 15, 10, 6; Islands: RS(T) + USI/CISA Island Designation (see rules for digital), Non-Islands: RS(T) + (state/province/country)(see rules for digital); Logs due: Sep 30.

World Wide Digi DX Contest, Aug 30, 1200z to Aug 31, 1200z; FT4/8; Bands: 160, 80, 40, 20, 15, 10; 4-character grid square; Logs due: Sep 5.

Colorado QSO Party, Aug 30, 1300z to Aug 31,0400z; CW, Phone, Digital; Bands: All, except WARC; CO: Name + county, W/VE: Name + (state/province), DX: Name + DXCC prefix; Logs due: Oct 4.

Kansas QSO Party, Aug 30, 1400z to Aug 31, 2000z; CW, SSB, Digital/RTTY; Bands: 80, 40, 20, 15, 10, 6; KS: RS(T) + county, non-KS: RS(T) + (state/province/"DX"); Logs due: Oct 1.

K1USN Slow Speed Test, Sep 1, 0000z to Sep 1, 0100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: Sep 3.

ICWC Medium Speed Test, Sep 1, 1300z to Sep 1, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: Sep 4.

OK1WC Memorial (MWC), Sep 1, 1630z to Sep 1, 1729z; CW; Bands: 80, 40; RST + Serial No.; Logs due: Sep 5.

RSGB 80m Autumn Series, SSB, Sep 1, 1900z to Sep 1, 2030z; SSB; Bands: 80; RS + Serial No.; Logs due: Sep 4.

ICWC Medium Speed Test, Sep 1, 1900z to Sep 1, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: Sep 4.

MI QRP Labor Day CW Sprint, Sep 1, 2300z to Sep 2, 0300z; CW; Bands: 160, 80, 40, 20, 15, 10, 6; RST + (state/province/country) + (member no./power output); Logs due: Sep 15.

ARS Spartan Sprint, Sep 2, 0000z to Sep 2, 0200z; CW; Bands: 80, 40, 20, 15, 10; RST + (state/province/country) + Power; Logs due: Sep 4.

Worldwide Sideband Activity Contest, Sep 2, 0100z to Sep 2, 0159z; SSB; Bands: 160, 80, 40, 20, 15, 10, 6; RS + age group (OM, YL, Youth YL or Youth); Logs due: Sep 3.

ICWC Medium Speed Test, Sep 2, 0300z to Sep 2, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: Sep 4.

Phone Weekly Test, Sep 3, 0230z to Sep 3, 0300z; SSB; Bands: 160, 80, 40, 20, 15; NA: Name + (state/province/country), non-NA: Name; Logs due: Sep 5.

A1Club AWT, Sep 3, 1145z to Sep 3, 1300z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: RST + Name; Logs due: Sep 8.

CWops Test (CWT), Sep 3, 1300z to Sep 3, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Sep 6.

Mini-Test 40, Sep 3, 1700z to Sep 3, 1759z; CW; Bands: 40; RST + Serial No.; Logs due: Sep 5.

Mini-Test 80, Sep 3, 1800z to Sep 3, 1859z; CW; Bands: 80; RST + Serial No.; Logs due: Sep 5.

CWops Test (CWT), Sep 3, 1900z to Sep 3, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Sep 6.

UKEICC 80m Contest, Sep 3, 2000z to Sep 3, 2100z; SSB; Bands: 80; 6-Character grid square; Logs due: Sep 3.

Walk for the Bacon QRP Contest, Sep 4, 0000z to Sep 5, 0300z; CW; Bands: 40; Maximum 13 wpm, RST + (state/province/country) + Name + (Member No./power); Logs due: Sep 11.

CWops Test (CWT), Sep 4, 0300z to Sep 4, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Sep 6.

CWops Test (CWT), Sep 4, 0700z to Sep 4, 0800z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Sep 6.

NRAU 10m Activity Contest, Sep 4, 1800z to Sep 4, 2200z; CW, SSB, FM, Digital; Bands: 10; RS(T) + 6-character grid square; Logs due: Sep 18.

SKCC Sprint Europe, Sep 4, 1900z to Sep 4, 2100z; CW; Bands: 160, 80, 40, 20, 15, 10, 6; RST + (state/province/country) + Name + (SKCC No./"NONE"); Logs due: Sep 11.

NCCC FT4 Sprint, Sep 5, 0100z to Sep 5, 0130z; FT4; Bands: (see rules); 4-character grid square; Logs due: Sep 7.

Weekly RTTY Test, Sep 5, 0145z to Sep 5, 0215z; RTTY; Bands: 80, 40, 20, 15, 10; Name + (state/province/country); Logs due: Sep 7.

NCCC Sprint Ladder, Sep 5, 0230z to Sep 5, 0300z; CW; Bands: 160, 80, 40, 20, 15; Serial No. + Name + QTH; Logs due: Sep 7.

K1USN Slow Speed Test, Sep 5, 2000z to Sep 5, 2100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: Sep 7.

All Asian DX Contest, Phone, Sep 6, 0000z to Sep 7, 2359z; Phone; Bands: 160, 80, 40, 20, 15, 10; RS + 2-digit age; Logs due: Sep 17.

CWOps CW Open, Sep 6, 0000z to Sep 6, 0359z; CW; Bands: 160, 80, 40, 20, 15, 10; Serial No. + Name; Logs due: Sep 24.

Wake-Up! QRP Sprint, Sep 6, 0600z to Sep 6, 0800z; CW; Bands: 40, 20; RST + Serial No. + suffix of previous QSO ("QRP" for 1st QSO); Logs due: Sep 13.

SARL Field Day Contest, Sep 6, 0800z to Sep 7, 1000z; CW, SSB, Digital; Bands: 160, 80, 40, 20, 15, 10; RS(T) + Number of transmitters + Category (see rules) + Province (or "DX"); Logs due: Sep 12.

Russian RTTY WW Contest, Sep 6, 1200z to Sep 7, 1159z; RTTY; Bands: 80, 40, 20, 15, 10; RU: RSQ + 2-letter oblast, non-RU: RST + QSO No.; Logs due: Sep 21.

CWOps CW Open, Sep 6, 1200z to Sep 6, 1559z; CW; Bands: 160, 80, 40, 20, 15, 10; Serial No. + Name; Logs due: Sep 24.

IARU Region 1 Field Day, SSB, Sep 6, 1300z to Sep 7, 1259z; SSB; Bands: 160, 80, 40, 20, 15, 10; RST + Serial No.; Logs due: Sep 14.

RSGB SSB Field Day, Sep 6, 1300z to Sep 7, 1300z; SSB; Bands: 80, 40, 20, 15, 10; RS + Serial No.; Logs due: Sep 12.

AGCW Straight Key Party, Sep 6, 1300z to Sep 6, 1600z; CW; Bands: 40; AGCW: RST + Serial No. + "/" + Class + "/" + Name + "/" + Age; Logs due: Sep 30.

Ohio State Parks on the Air, Sep 6, 1400z to Sep 6, 2200z; SSB; Bands: 80, 40, 20, 15, 10; OH Park: park abbreviation, OH: "Ohio", W/VE: (state/province), DX: "DX"; Logs due: Sep 20.

PODXS 070 Club Jay Hudak Memorial 80m Sprint, Sep 6, 2000z to Sep 7, 2000z; PSK31; Bands: 80; RST + (state/province/country); Logs due: Sep 14.

CWOps CW Open, Sep 6, 2000z to Sep 6, 2359z; CW; Bands: 160, 80, 40, 20, 15, 10; Serial No. + Name; Logs due: Sep 24.

Tennessee QSO Party, Sep 7, 1700z to Sep 8, 0300z; CW, Phone, Digital; Bands: All, except WARC; TN: RS(T) + county, non-TN: RS(T) + (state/province/country); Logs due: Sep 17.

K1USN Slow Speed Test, Sep 8, 0000z to Sep 8, 0100z; CW; Bands: 160, 80, 40, 20, 15, 10; Maximum 20 wpm, Name + (state/province/country); Logs due: Sep 10.

ICWC Medium Speed Test, Sep 8, 1300z to Sep 8, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: Sep 11.

OK1WC Memorial (MWC), Sep 8, 1630z to Sep 8, 1729z; CW; Bands: 80, 40; RST + Serial No.; Logs due: Sep 12.

ICWC Medium Speed Test, Sep 8, 1900z to Sep 8, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: Sep 11.

Worldwide Sideband Activity Contest, Sep 9, 0100z to Sep 9, 0159z; SSB; Bands: 160, 80, 40, 20, 15, 10, 6; RS + age group (OM, YL, Youth YL or Youth); Logs due: Sep 10.

ICWC Medium Speed Test, Sep 9, 0300z to Sep 9, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10; Name + QSO No.; Logs due: Sep 11.

DARC CW-Training Contest, Sep 9, 1800z to Sep 9, 1859z; CW; Bands: 80; DE: RST + DOK/NM, non-DE: RST + Serial No.; Logs due: Sep 16.

Phone Weekly Test, Sep 10, 0230z to Sep 10, 0300z; SSB; Bands: 160, 80, 40, 20, 15; NA: Name + (state/province/country), non-NA: Name; Logs due: Sep 12.

A1Club AWT, Sep 10, 1145z to Sep 10, 1300z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: RST + Name; Logs due: Sep 15.

CWops Test (CWT), Sep 10, 1300z to Sep 10, 1400z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Sep 13.

Mini-Test 40, Sep 10, 1700z to Sep 10, 1759z; CW; Bands: 40; RST + Serial No.; Logs due: Sep 12.

Mini-Test 80, Sep 10, 1800z to Sep 10, 1859z; CW; Bands: 80; RST + Serial No.; Logs due: Sep 12.

RSGB 80m Autumn Series, CW, Sep 10, 1900z to Sep 10, 2030z; CW; Bands: 80; RST + Serial No.; Logs due: Sep 13.

CWops Test (CWT), Sep 10, 1900z to Sep 10, 2000z; CW; Bands: 160, 80, 40, 20, 15, 10; Member: Name + Member No./"CWA", non-Member: Name + (state/province/country); Logs due: Sep 13.

VHF+ CONTESTS

VHF-UHF FT8 Activity Contest, Sep 3, 1700z to Sep 3, 2100z; FT8/4; Bands: 144 MHz; 4-character grid square; Logs due: Sep 8.

SARL VHF/UHF FM Contest, Sep 6, 0800z to Sep 7, 1000z; SSB; Bands: 50 MHz, 144 MHz, 432 MHz; RS(T) + 6-character grid locator; Logs due: Sep 12.

IARU Region 1 145 MHz Contest, Sep 6, 1400z to Sep 7, 1400z; All; Bands: 145 MHz; RS(T) + QSO No. + 6-character grid square; Logs due: Sep 15.

WAB 144 MHz Phone, Sep 7, 1000z to Sep 7, 1400z; SSB; Bands: 2; British Isles: RS + serial no. + WAB square, Other: RS + serial no. + country; Logs due: Sep 17.

VHF-UHF FT8 Activity Contest, Sep 10, 1700z to Sep 10, 2100z; FT8/4; Bands: 432 MHz; 4-character grid square; Logs due: Sep 15.

Log Due Dates

August 28

August 29

August 30

August 31

September 1

September 3

September 4

September 5

September 6

September 7

September 8

September 9

SARTG WW RTTY Contest

September 10

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Acknowledgements

ARRL Contest Update wishes to acknowledge information from WA7BNM's Contest Calendar.

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