Japan International DX Contest, CW

Thirty hours of CW into Japan, with the 47 prefectures as multipliers -- the main event for working JA from anywhere.

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

When it runs

Second full weekend of April

0700Z Saturday → 1300Z Sunday

Times are UTC, as the sponsor states them.

Next runnings

0700Z Sat 10 Apr → 1300Z Sun 11 Apr · 30h2027
in 190 days
Logs due 1300Z Tue 11 May
0700Z Sat 8 Apr → 1300Z Sun 9 Apr · 30h2028
in 554 days
Logs due 1300Z Tue 9 May
0700Z Sat 14 Apr → 1300Z Sun 15 Apr · 30h2029
in 925 days
Logs due 1300Z Tue 15 May
0700Z Sat 13 Apr → 1300Z Sun 14 Apr · 30h2030
in 1289 days
Logs due 1300Z Tue 14 May

Operating

Modes: CW
Bands: 160m80m40m20m15m10m
1.8, 3.5, 7, 14, 21 and 28 MHz.
Exchange: Japanese stations send RST and their prefecture number, 01 to 50. Everyone else sends RST and their CQ zone.
Logs: due 30 days after the end
Who can enter: Anyone, anywhere.
The exchange has a form for stations outside Japan, which is who the contest is aimed at.

Where this comes from

Checked against the sponsor: Yes. The rule on this page was read off JIDX Contest Committee's own published rules. Link last confirmed 2026-08-21.
What the source says: jidx.org/jidxrule-e.html, the JIDX Contest Committee's own English rules: 'CW Start Sat. 0700 -Sun. 1300UTC 2nd full weekend of April'. Bands: '1.8/3.5/7/14/21/28MHz'. Exchange: 'JAs : RS(T) + Prefecture number(01 to 50)' and 'Others: RS(T) + CQ Zone number'. Deadline: 'No later than ONE month after the end of contest.'
Recorded caveats: THE TWO LEGS ARE SIX MONTHS APART AND SHARE EVERYTHING ELSE -- same hours, same bands, same exchange, same second-full-weekend rule. CW runs in April and phone in November, which is the only reason these are two records. Thirty hours rather than a round twenty-four: 0700 Saturday to 1300 Sunday.

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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