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The most interesting contests of June 2026
OM3AU Memorial – a domestic VHF milestone
OM3AU Memorial sa koná 6. – 7. júna 2026 v čase 14:00 – 14:00 UTC (24 hodín) na pásmach 144 MHz a 432 MHz. Ide o VKV závod pomenovaný po legendárnom slovenskom rádioamatérovi. Contestová výmena zahŕňa RST, poradové číslo QSO a WW lokátor. Bodovanie je štandardné pre európske VKV závodné formáty – body za vzdialenosť QRB according to locator squares. The competition is open to stations from Slovakia, but foreign operators can also participate.
Microwave Race – European Band 1.3 – 76 GHz
Rovnako June 6-7, 2026, taktiež v okne 14:00 – 14:00 UTC, prebieha európsky Microwave plant (Microwave Contest) na pásmach od 1.3 GHz to 76 GHz. Tento contest má osobitné postavenie – je to jedna z hlavných príležitostí v kalendári, kedy sa intenzívne závodne aktivujú pásma ako 24 GHz, 47 GHz alebo 76 GHz. Úspech v mikrovlnnom závode závisí od kvality transvertorov, nízkošumových LNA, kvality parabolických antén a predovšetkým od schopnosti operátorov nájsť vhodné QTH. Výmena je rovnaká ako pri VKV závodoch – RST, číslo a WW lokátor. Hodnotenie prebieha osobitne pre každé pásmo.
ARRL International Digital contest

ARRL International Digital Contest sa koná June 6-7, 2026, pričom závodné okno je 18:00 UTC sobota – 24:00 UTC nedeľa, teda 30 hodín. Ide o jeden z mála contestov organizácie ARRL, ktorý je plne otvorený pre zahraničných (DX) operátorov bez obmedzenia. Povolené sú digitálne módy ako PSK31 a ďalších bežne používaných DIGI módov FT8 a FT4 (pozor, RTTY povolené nie je). Závodná výmena sa líši pre W/VE stanice a DX stanice – zahraniční operátori odosielajú RST a sekvenčné číslo, americké stanice navyše svoju štátnu skratku. Bodovanie zvýhodňuje QSO s W/VE stanicami pre DX operátorov a naopak. Pre slovenské stanice je to tradične dobrá príležitosť nazbierať body na pásmach 40 m, 20 m a 15 m cez atlantický smer.
WW South America CW DX contest
Závodné okno tohto kontesta je 13. – 14. júna 2026, od 15:00 UTC sobota do 15:00 UTC nedeľa – čiže 24 hodín. Ide o CW závodné podujatie zamerané na spojenia s juhoamerickým kontinentom. Z európskeho pohľadu ide o relatívne náročný contest v závislosti od slnečnej aktivity. Napriek tomu Band 20 m a 40 m poskytujú solídne podmienky a skúsení CW operátori s citlivými TCVR a smerovou anténou (tribander, yagi) dosahujú výborné výsledky. Závodná výmena pozostáva z RST a poradového čísla.
All Asian DX contest – CW

All Asian DX Contest CW patrí k Oldest organizovaným medzinárodným contestom a v roku 2026 sa koná 20. – 21. júna v rozsahu 48 hodín od 00:00 UTC sobota do 24:00 UTC nedeľa. Závodná výmena je špecifická: stanice odosielajú RST a vek operátora (v rokoch). Bodovanie závisí od smeru QSO; bodové hodnoty sú vyššie za transkontinentálne spojenia. Pre slovenské stanice je najproduktívnejším pásmom 20 m, kde propagácia smerom na JA, UA9, BY a podobné oblasti býva v júni využiteľná najmä v ranných hodinách UTC. Násobič tvorí počet ázijských krajín (DXCC entities) na každom pásme.
Slovak and Czech contests in June 2026

The Slovak racing scene is active in June, especially in the VHF and microwave bands, where the Memorial dominates. OM3AU and Microwave races. On shortwave, the Slovak and Czech racing calendar mainly covers regular activities such as SSB Liga, OK1WC Memorial and OM Activity contest.
OM Activity contest
It takes place on June 13, 2026 from 04:00 to 06:00 UTC (2 hours) in CW/SSB modes. This is a short domestic activity competition focused on Slovak stations, although OK amateurs can also participate. The competition exchange is RS(T) + serial number. For newcomers to contesting, this is a suitable format for the first steps - short duration, relatively low QRM and operation on the regular 80 m band.
Memorial OK1WC
The OK1WC Memorial is a weekly CW race with a repeat every Monday at 16:30 – 17:30 UTC (1 hour). In June 2026 it will take place on the following dates: 8. 6., 15. 6., 22. 6. and 29. 6. It is a standard short CW sprint on the HF bands, traditionally popular among Czech-Slovak telegraphists. The exchange includes RST and a serial number.
SSB Liga
SSB Liga prebehne 6. júna 2026 od 05:00 do 07:00 UTC (2 hours) in SSB mode. This is part of a long-term league competition on the HF bands within the Czech-Slovak competition environment. The exchange is typically RST and number, categories are divided by power and antenna.
Activity 160 m
There are two activities on the topband in June: Activity 160 SSB (June 8, 19:30 – 20:30 UTC) and Activity 160 CW (June 15, 19:30 – 20:30 UTC). Both last 1 hour and are focused on operation on the 160m band. Operation on the topband in June is physically more demanding than in the winter months – the long day shortens the window of darkness necessary for effective propagation on 1.8 MHz, which directly affects the results.
CUC and Sunday race
CUC and Sunday Race are Czech-Slovak short CW races with a half-hour format, held every Monday (CUC: 17:30 – 18:00 UTC) and Sunday (Sunday Race: 17:30 – 18:00 UTC). In June 2026, Sunday Race will be held: 7. 6., 14. 6., 21. 6. and 28. 6., CUC: 8. 6., 15. 6., 22. 6. and 29. 6.
Telegraph plant with manual keys
This specific race takes place on June 27, 2026 from 04:00 to 05:00 UTC (1 hour) in CW mode. The event is part of the tradition of preserving manual telegraphy.
KV operating assets
It will take place on June 7, 2026 from 05:00 to 06:00 UTC (1 hour) in CW mode. It is a short CW activity on the HF bands.
VHF and microwave events – detailed overview
Nordic Activity contest
NAC is a series of monthly one-day VHF activities, in which, in addition to the Nordic countries, stations from SP, I, PA, LY, YL and G also participate. In June 2026, this series will take place as follows:
| Date | Band | UTC time |
|---|---|---|
| 2. 6. 2026 | 144MHz | 5:00 PM – 9:00 PM |
| 9. 6. 2026 | 432MHz | 5:00 PM – 9:00 PM |
| 11. 6. 2026 | 50MHz | 5:00 PM – 9:00 PM |
| 16. 6. 2026 | 1296MHz | 5:00 PM – 9:00 PM |
| 18. 6. 2026 | 70 MHz | 5:00 PM – 9:00 PM |
| 23. 6. 2026 | 2.3 GHz and above | 5:00 PM – 9:00 PM |
The race exchange includes RST, number and WW locator, each zone and each date are evaluated separately.
IARU Region-1 50 MHz contest CW/SSB

Tento závodný formát organizovaný pod záštitou IARU Region 1 sa koná 20. – 21. júna 2026 v čase 2:00 PM – 2:00 PM UTC (24 hodín) na pásme 50 MHz. Jún je pre pásmo 6 m sezónne najprínosnejší mesiac – sporadické E šírenie (Es) dosahuje vrchol, čo vytvára podmienky pre výnimočné QRB hodnoty a spojenia ďaleko presahujúce bežné VKV dosahy. Pre slovenských amatérov so slušnou horizontálnou anténou na 50 MHz (yagi, hexbeam, quad) je tento contest jednou z najlepších príležitostí na kumuláciu nových DXCC entít alebo nových lokátorových štvorcov na 6 m.
European EME contest CW/SSB – 24 GHz
Dňa 13. júna 2026 prebehne European EME Contest (Earth-Moon-Earth) na pásme 24 GHz v trvaní 24 hodín (00:00 – 24:00 UTC), ktorý organizujú Dubus a REF. EME prevádzka na 24 GHz kladie mimoriadne vysoké nároky na mechanickú presnosť antény (parabolické zrkadlo s presnou kolimáciou), citlivosť prijímača (nízkošumový preamplifier, GPSDO pre frekvenčnú stabilitu) a pochopenie lunárneho okna v závislosti od vzájomnej polohy Mesiaca, QTH operátora a cieľovej stanice.
Stew Perry Topband Distance Challenge
It takes place on June 20-21, 2026 in the 15:00 - 15:00 UTC (24 hours) window in CW mode on the 160m band. Stew Perry is one of the most popular topband contests in the world, judged solely by QRB - the further, the more points. For European stations, DX contacts to the west (W, VE) and southeast (JA, VK) are especially valuable. The competition exchange contains only the WW locator - no number, no RST. The same four-letter locator for every QSO. Results are submitted in Cabrillo format.
More VHF events in June 2026
V júni 2026 sa koná aj séria regionálnych VKV aktivít: CQ Budapest Contest (1. júna, 144 MHz – 76 GHz, 16:00 – 18:00 UTC), MOON Contest on 144 MHz (3. 6.), 432 MHz (10. 6.), 50 MHz (17. 6.) and 1296 MHz (24. 6.) always from 18:00 to 20:00 UTC in the OK organization, further VHF-UHF FT8 Activity organizovaná YO2KQT (3. 6. na 144 MHz a 10. 6. na 432 MHz, 17:00 – 21:00 UTC), FM pohár OK (13. 6., 08:00 – 10:00 UTC, 144 a 432 MHz), DMR-C4FM Contest OK (13. 6., 10:30 – 12:30 UTC, 144 MHz), AGCW VHF/UHF Contest CW (13. 6., 144 MHz: 14:00 – 17:00 UTC; 432 MHz: 17:00 – 18:00 UTC), VHF operating assets / VHF Provozní aktiv (21. 6., 08:00 – 11:00 UTC, 144MHz - 76GHz, OM, OK) a séria regionálnych aktivít 21. júna vrátane VHF Maratónu HG, SP UKF Activity Contest, ZRS Maratónu S5, 9A Activity Contest a Alpe Adria UHF/SHF Contest.
Table of selected contests – June 2026 (KV and DIGI)
| Date | UTC time | Duration | Race name | Fashion |
|---|---|---|---|---|
| 6. 6. 2026 | 05:00 – 07:00 | 2 hours | SSB Liga | SSB |
| 6. – 7. 6. 2026 | 18:00 – 24:00 (Sun.) | 30 hours | ARRL International Digital contest | DIGI |
| 7. 6. 2026 | 05:00 – 06:00 | 1 hour | KV operating assets | CW |
| 7. 6. 2026 | 17:30 – 18:00 | 30 minutes. | Sunday race | CW |
| 8. 6. 2026 | 4:30 PM – 5:30 PM | 1 hour | Memorial OK1WC | CW |
| 8. 6. 2026 | 17:30 – 18:00 | 30 minutes. | CUC | CW |
| 8. 6. 2026 | 19:30 – 20:30 | 1 hour | Activity 160 SSB | SSB |
| 13. 6. 2026 | 04:00 – 06:00 | 2 hours | OM Activity contest | CW/SSB |
| 13. – 14. 6. 2026 | 3:00 PM – 3:00 PM | 24 hours | WW South America CW DX contest | CW |
| 14. 6. 2026 | 17:30 – 18:00 | 30 minutes. | Sunday race | CW |
| 15. 6. 2026 | 4:30 PM – 5:30 PM | 1 hour | Memorial OK1WC | CW |
| 15. 6. 2026 | 17:30 – 18:00 | 30 minutes. | CUC | CW |
| 15. 6. 2026 | 19:30 – 20:30 | 1 hour | Activity 160 CW | CW |
| 20. – 21. 6. 2026 | 00:00 – 24:00 | 48 hours | All Asian DX contest | CW |
| 20. – 21. 6. 2026 | 3:00 PM – 3:00 PM | 24 hours | Stew Perry Topband Dist. Challenge | CW |
| 21. 6. 2026 | 17:30 – 18:00 | 30 minutes. | Sunday race | CW |
| 22. 6. 2026 | 4:30 PM – 5:30 PM | 1 hour | Memorial OK1WC | CW |
| 22. 6. 2026 | 17:30 – 18:00 | 30 minutes. | CUC | CW |
| 27. 6. 2026 | 04:00 – 05:00 | 1 hour | Telegraph plant with manual keys | CW |
| 28. 6. 2026 | 17:30 – 18:00 | 30 minutes. | Sunday race | CW |
| 29. 6. 2026 | 4:30 PM – 5:30 PM | 1 hour | Memorial OK1WC | CW |
| 29. 6. 2026 | 17:30 – 18:00 | 30 minutes. | CUC | CW |
Table of selected contests – June 2026 (VHF and microwave)
| Date | UTC time | Band | Race name | Org. |
|---|---|---|---|---|
| 1. 6. 2026 | 4:00 PM – 6:00 PM | 144MHz - 76GHz | CQ Budapest contest | HG |
| 2. 6. 2026 | 5:00 PM – 9:00 PM | 144MHz | Nordic Activity contest | SM, OH, LA, OZ… |
| 3. 6. 2026 | 5:00 PM – 9:00 PM | 144MHz | VHF-UHF FT8 Activity | YO2KQT |
| 3. 6. 2026 | 18:00 – 20:00 | 144MHz | MOON contest | OK |
| 6. – 7. 6. 2026 | 2:00 PM – 2:00 PM | 144 and 432 MHz | OM3AU Memorial | OM |
| 6. – 7. 6. 2026 | 2:00 PM – 2:00 PM | 1.3 - 76 GHz | Microwave Race / Microwave Race | EU |
| 9. 6. 2026 | 5:00 PM – 9:00 PM | 432MHz | Nordic Activity contest | SM, OH, LA, OZ… |
| 10. 6. 2026 | 5:00 PM – 9:00 PM | 432MHz | VHF-UHF FT8 Activity | YO2KQT |
| 10. 6. 2026 | 18:00 – 20:00 | 432MHz | MOON contest | OK |
| 11. 6. 2026 | 5:00 PM – 9:00 PM | 50MHz | Nordic Activity contest | SM, OH, LA, OZ… |
| 13. 6. 2026 | 00:00 – 24:00 | 24 GHz | European EME contest CW/SSB | Dubus, REF |
| 13. 6. 2026 | 08:00 – 10:00 | 144 and 432 MHz | FM Cup | OK |
| 13. 6. 2026 | 10:30 – 12:30 | 144MHz | DMR-C4FM contest | OK |
| 13. 6. 2026 | 2:00 PM – 5:00 PM | 144MHz | AGCW VHF/UHF contest CW | DL |
| 13. 6. 2026 | 5:00 PM – 6:00 PM | 432MHz | AGCW VHF/UHF contest CW | DL |
| 16. 6. 2026 | 5:00 PM – 9:00 PM | 1296MHz | Nordic Activity contest | SM, OH, LA, OZ… |
| 17. 6. 2026 | 18:00 – 20:00 | 50MHz | MOON contest | OK |
| 18. 6. 2026 | 5:00 PM – 9:00 PM | 70 MHz | Nordic Activity contest | SM, OH, LA, OZ… |
| 20. – 21. 6. 2026 | 2:00 PM – 2:00 PM | 50MHz | IARU Region-1 50 MHz contest CW/SSB | IARU R1 |
| 21. 6. 2026 | 07:00 – 12:00 | 144MHz - 76GHz | VHF Marathon | HG |
| 21. 6. 2026 | 07:00 – 13:00 | 50MHz - 47GHz | SP UKF Activity contest | SP |
| 21. 6. 2026 | 07:00 – 13:00 | 50 MHz and above | ZRS Marathon | S5 |
| 21. 6. 2026 | 07:00 – 15:00 | 50 MHz and above | 9A Activity contest | 9A |
| 21. 6. 2026 | 07:00 – 15:00 | 432MHz and above | Alpe Adria UHF/SHF contest | S5, 9A, OE, I |
| 21. 6. 2026 | 08:00 – 11:00 | 144MHz - 76GHz | Operating assets VHF / VHF Operating asset | OM, OK |
| 23. 6. 2026 | 5:00 PM – 9:00 PM | 2.3 GHz and above | Nordic Activity contest | SM, OH, LA, OZ… |
| 24. 6. 2026 | 18:00 – 20:00 | 1296MHz | MOON contest | OK |
International perspective – other contests

In addition to the races listed above, the June international calendar offers a rich variety of short, repetitive activities that can be used to maintain race fitness between larger events. The following series are regularly repeated:
K1USN Slow Speed Test (CW) – opakuje sa každý pondelok (00:00 – 00:59 UTC) and každý piatok (20:00 – 20:59 UTC). Závodík je určený telegrafistom s nižšou rýchlosťou, čo ho robí vhodným pre tých, ktorí si budujú CW kondíciu.
ICWC Medium Speed Test (CW) – three-session format every Monday (Session #1: 13:00, Session #2: 19:00 UTC) and Tuesday (Session #3: 03:00 UTC). For intermediate CW operators.
OK1WC Memorial (CW/SSB) – every Monday from 16:30 to 17:29 UTC, HF bands.
NCCC Sprint (CW) – každý piatok 02:30 – 02:59 UTC.
NCCC FT4 Sprint – každý piatok 01:00 – 01:29 UTC v móde FT4/FT8.
Weekly RTTY Test – každý piatok 01:45 – 02:14 UTC v móde RTTY.
Phone Weekly Test (SSB) – every Wednesday 02:30 – 03:59 UTC.
A1CLUB Weekly Test (CW) – every Wednesday 12:00 – 12:59 UTC.
Monthly Mini-CWT (CW) – four sessions each month, starting in June 2026 on June 3rd–4th (Session #1–4) and repeating the following weeks. Organized by CWops.
Worldwide Sideband Activity contest (SSB) – každý utorok 01:00 – 01:59 UTC.
NAQCC Straight key/Bug Sprint (CW) – takes place on June 10 and June 17, 2026 (mW version) in the window 00:30 – 02:29 UTC. Competes exclusively with simple mechanical keyboards.
Z kalendára sa ďalej vyčleňuje Straight Key Sprint Europe (CW) (4. júna, 19:00 – 20:59 UTC), DARC CW-Training contest (9. júna, 18:00 – 18:59 UTC), NTC QSO Party (18. júna, 19:00 – 19:59 UTC) a NRAU Activity 10m contest (4. júna, 17:00 – 20:59 UTC, CW/Phone/Digital).
RSGB 3.5 MHz Club Championship Contest will take place v júni trikrát – vo formátoch Data (1. júna), CW (10. júna) a SSB (25. júna). Kalendár ua9qcq.com pri týchto závodoch uvádza poznámku o porušení princípov Ham Spirit zo strany organizátorov; táto informácia je prevzatá bez hodnotenia z pôvodného zdroja.
Also worth mentioning from the American environment is the Four States QRP Group Second Sunday Sprint (June 15, 01:00 - 02:59 UTC, CW/SSB), which is focused on QRP stations and is popular among fans of low-power connections.
Conclusion – how to seize the June contest month
June 2026 brings several complementary opportunities to the competition field. For VHF operators, the weekend of June 6-7 is key: the OM3AU Memorial and the Microwave Race are held concurrently, allowing portable groups to combine 2m and 70cm activity with microwave operation without having to leave their site.
Pre KV contesterov sú najvýznamnejšími podujatiami ARRL International Digital contest (6. – 7. 6.), WW South America CW DX contest (13. – 14. 6.) a All Asian DX contest CW (20. – 21. 6.). Topband operátori si nájdu priestor v Stew Perry Distance Challenge (20. – 21. 6.) a v mesačných Aktivitách 160 m. Pre operátorov, ktorí chcú systematicky budovať CW kondíciu, ponúka jún dostatočný počet krátkych sprintov – od K1USN po CWops Mini-CWT – na každodennú hodinovú prax.
All times in this overview are given in UTC. Before participating in individual competitions, we recommend checking the current rules directly with the organizers, as conditions may change from year to year. Submit logs in Cabrillo or ADIF format according to the requirements of individual competitions and do not forget to correctly enter the category, power and DXCC Entity number in the header of the log.
