Russian DX Contest (RDXC)

Russia's international DX contest: 24 hours on five HF bands plus 160m, with Russian oblasts as multipliers on top of DXCC and WAE.

Rules at rdxc.orgThe rules are the sponsor's. This page holds the dates and the facts.

When it runs

Dates set by the sponsor each year (no derivable rule)

1200Z → 1159Z the next day

Times are UTC, as the sponsor states them.

The sponsor announces these dates a year at a time and there is no rule to derive, so this calendar holds only the years they have published: 2027.

Next runnings

1200Z Sat 20 Mar → 1159Z Sun 21 Mar · 23h 59m2027
in 170 days
Logs due 1159Z Sun 4 Apr

Operating

Modes: CW / SSB
Bands: 160m80m40m20m15m10m
1.8-28 MHz, WARC bands excluded.
Exchange: Russian stations send RS(T) and their two-letter oblast identifier; everyone else sends RS(T) and a serial from 001, numbered continuously across bands.
Power categories: High PowerLow Power 100 WQRP 5 W
Logs: Cabrillo · due 14 days after the end · ua9qcq.ru
Who can enter: Anyone, anywhere.
The reglament gives exchanges and point values for Russian and non-Russian entrants alike and scores results separately by continent, with no entry restriction.

Where this comes from

Checked against the sponsor: Yes. The rule on this page was read off SRR's own published rules. Link last confirmed 2026-08-19.
What the source says: rdxc.org/rules, the Soyuz radiolyubitelei Rossii's own reglament. '2. VREMYA PROVEDENIYA SOREVNOVANIY, DIAPAZONY I VIDY MODULYATSII: «RUSSIAN DX CONTEST» provoditsya s 12:00 UTC 20 marta po 11:59 UTC 21 marta 2027 goda na diapazonakh 1,8 - 28 MHz (isklyuchaya WARC diapazony). Vidy modulyatsii: CW i SSB.' (Held from 12:00 UTC on 20 March to 11:59 UTC on 21 March 2027 on 1.8-28 MHz excluding the WARC bands; modes CW and SSB.) 6.1 and 6.3: Russian participants send RS(T) plus a two-letter oblast identifier, everyone else RS(T) plus a serial from 001 numbered continuously across bands. 7.2: 10 points for a Russian station regardless of continent, 2 within one's own country, 3 within one's own continent, 5 to another. Power: High Power is the licence limit, Low Power 100 W, QRP 5 W. 11.1: Cabrillo only; 11.5: logs are accepted only through ua9qcq.ru/submit_log.php. 12.1: 'Otchyoty ... prinimayutsya v techenii 14 dney posle okonchaniya sorevnovaniy (po 04.04.2027 goda vklyuchitelno).'
Recorded caveats: SRR's rules page states a date and no recurrence rule, so the record is manual -- and the only year it states is 2027, which is why this contest produces no 2026 occurrence. Inferring 'the fourth full weekend of March' from one printed date would be this catalog writing a rule SRR did not. The 14-day deadline is checkable against SRR's own arithmetic: the contest ends 11:59 UTC on 21 March 2027 and SRR prints 4 April 2027 as the last day, which is exactly 14 days. CONTRADICTION, recorded not reconciled: the rules say the contest ends at 11:59 UTC while the site banner says '12:00-12:00 UTC'. The rules text is what is encoded.

Something wrong? How to report it — a link to the sponsor's own page is all it takes.

Take it with you

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