ES Open HF Championship

Estonia's four-hour spring championship on 80m and 40m at once. Estonian stations work the world; everyone else works Estonia.

Rules at erau.eeThe rules are the sponsor's. This page holds the dates and the facts.

When it runs

Third Saturday of April

0500Z → 0859Z Saturday

Times are UTC, as the sponsor states them.

Next runnings

0500Z Sat 17 Apr → 0859Z Sat 17 Apr · 3h 59m2027
in 197 days
Logs due 0859Z Sat 24 Apr
0500Z Sat 15 Apr → 0859Z Sat 15 Apr · 3h 59m2028
in 561 days
Logs due 0859Z Sat 22 Apr
0500Z Sat 21 Apr → 0859Z Sat 21 Apr · 3h 59m2029
in 932 days
Logs due 0859Z Sat 28 Apr
0500Z Sat 20 Apr → 0859Z Sat 20 Apr · 3h 59m2030
in 1296 days
Logs due 0859Z Sat 27 Apr

Operating

Modes: CW / SSB
Bands: 80m40m
CW 3510-3560 and 7010-7040 kHz; SSB 3600-3650, 3700-3750 and 7060-7100, 7130-7175 kHz.
Exchange: RS(T) and a continuous serial number from 001.
Power categories: Low Power 100 WQRP 10 W
Logs: Cabrillo · due 7 days after the end · esopen.erau.ee
Who can enter: Anyone, anywhere.
'ESTONIAN STATIONS CAN WORK ALL THE STATIONS WHO PARTICIPATE ... NON-ES STATIONS CAN WORK ONLY ES STATIONS.' Anyone may enter; what differs is who counts. ERAU also states that contacts with Russian and Belarusian stations score nothing, citing the war in Ukraine.

Where this comes from

Checked against the sponsor: Yes. The rule on this page was read off ERAU's own published rules. Link last confirmed 2026-08-19.
What the source says: erau.ee ES Open HF Championship rules (PDF). 'TIME: 3rd SATURDAY in APRIL: 18. APRIL 2026 05.00 - 08.59 UTC'. 'BANDS: 80 M AND 40 M SIMULTANEOUSLY' -- CW 3510-3560 and 7010-7040, SSB 3600-3650, 3700-3750 and 7060-7100, 7130-7175 kHz. 'ESTONIAN STATIONS CAN WORK ALL THE STATIONS WHO PARTICIPATE ... NON-ES STATIONS CAN WORK ONLY ES STATIONS.' 'NB! Due to the ongoing war in the Ukraine QSO-s with stations from Russia and Byelorussia are not counted in this contest and will not give any points.' Exchange: RS(T) and a continuous serial from 001. CW contacts score 2 points and SSB 1. Categories: LP up to 100 W, QRP up to 10 W. 'DEADLINE: LOGS ... SHOULD BE SENT NOT LATER THAN 7 DAYS AFTER THE CONTEST'. Second source, published separately by ERAU: its 2026 calendar prints a row 'ES Open HF Championship / 05:00-08:59 / CW,SSB' on 18.04.
Recorded caveats: The third Saturday of April 2026 is the 18th, which is the date the rules print and the date ERAU's own 2026 calendar carries. Everyone may enter, but only ES stations can work everyone; that asymmetry is recorded in the eligibility note rather than as two_sided, because two_sided would tell a station in an unlisted entity it cannot enter, which is false here.

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

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