{
  "contest": {
    "id": "jidx-cw",
    "name": "Japan International DX Contest, CW",
    "sponsor": "JIDX Contest Committee",
    "sponsor_home": "https://jidx.org/",
    "country": "JP",
    "summary": "Thirty hours of CW into Japan, with the 47 prefectures as multipliers -- the main event for working JA from anywhere.",
    "modes": [
      "CW"
    ],
    "bands": [
      "160m",
      "80m",
      "40m",
      "20m",
      "15m",
      "10m"
    ],
    "exchange": "Japanese stations send RST and their prefecture number, 01 to 50. Everyone else sends RST and their CQ zone.",
    "power_categories": [],
    "log_format": "",
    "log_deadline_days": 30,
    "log_submit_url": "",
    "timezone": "",
    "local_rolling": false,
    "eligibility": {
      "scope": "worldwide",
      "verified": true,
      "note": "The exchange has a form for stations outside Japan, which is who the contest is aimed at."
    },
    "active_from": null,
    "active_until": null,
    "note": "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.\n\nThirty hours rather than a round twenty-four: 0700 Saturday to 1300 Sunday.",
    "verified": true,
    "rules_url": "https://jidx.org/jidxrule-e.html",
    "rules_url_pattern": "",
    "rules_url_archived": "",
    "rules_url_checked": "2026-08-21",
    "source_note": "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.'"
  },
  "rule": {
    "plain": "Second full weekend of April",
    "raw": {
      "type": "nth_full_weekend",
      "month": 4,
      "n": 2
    },
    "start": {
      "day_offset": 0,
      "time": "0700"
    },
    "end": {
      "day_offset": 1,
      "time": "1300"
    },
    "sessions": null
  },
  "next": [
    {
      "contest_id": "jidx-cw",
      "name": "Japan International DX Contest, CW",
      "start": "2027-04-10T07:00:00Z",
      "end": "2027-04-11T13:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 30,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "1.8, 3.5, 7, 14, 21 and 28 MHz.",
      "sponsor": "JIDX Contest Committee",
      "rules_url": "https://jidx.org/jidxrule-e.html",
      "verified": true,
      "note": "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.\n\nThirty hours rather than a round twenty-four: 0700 Saturday to 1300 Sunday.",
      "exchange": "Japanese stations send RST and their prefecture number, 01 to 50. Everyone else sends RST and their CQ zone.",
      "country": "JP",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-21",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2027-05-11T13:00:00Z",
      "uid": "jidx-cw-20270410T0700@contestcal",
      "start_date": "2027-04-10",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "jidx-cw",
      "name": "Japan International DX Contest, CW",
      "start": "2028-04-08T07:00:00Z",
      "end": "2028-04-09T13:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 30,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "1.8, 3.5, 7, 14, 21 and 28 MHz.",
      "sponsor": "JIDX Contest Committee",
      "rules_url": "https://jidx.org/jidxrule-e.html",
      "verified": true,
      "note": "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.\n\nThirty hours rather than a round twenty-four: 0700 Saturday to 1300 Sunday.",
      "exchange": "Japanese stations send RST and their prefecture number, 01 to 50. Everyone else sends RST and their CQ zone.",
      "country": "JP",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-21",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2028-05-09T13:00:00Z",
      "uid": "jidx-cw-20280408T0700@contestcal",
      "start_date": "2028-04-08",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "jidx-cw",
      "name": "Japan International DX Contest, CW",
      "start": "2029-04-14T07:00:00Z",
      "end": "2029-04-15T13:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 30,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "1.8, 3.5, 7, 14, 21 and 28 MHz.",
      "sponsor": "JIDX Contest Committee",
      "rules_url": "https://jidx.org/jidxrule-e.html",
      "verified": true,
      "note": "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.\n\nThirty hours rather than a round twenty-four: 0700 Saturday to 1300 Sunday.",
      "exchange": "Japanese stations send RST and their prefecture number, 01 to 50. Everyone else sends RST and their CQ zone.",
      "country": "JP",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-21",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2029-05-15T13:00:00Z",
      "uid": "jidx-cw-20290414T0700@contestcal",
      "start_date": "2029-04-14",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "jidx-cw",
      "name": "Japan International DX Contest, CW",
      "start": "2030-04-13T07:00:00Z",
      "end": "2030-04-14T13:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 30,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "1.8, 3.5, 7, 14, 21 and 28 MHz.",
      "sponsor": "JIDX Contest Committee",
      "rules_url": "https://jidx.org/jidxrule-e.html",
      "verified": true,
      "note": "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.\n\nThirty hours rather than a round twenty-four: 0700 Saturday to 1300 Sunday.",
      "exchange": "Japanese stations send RST and their prefecture number, 01 to 50. Everyone else sends RST and their CQ zone.",
      "country": "JP",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-21",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2030-05-14T13:00:00Z",
      "uid": "jidx-cw-20300413T0700@contestcal",
      "start_date": "2030-04-13",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    }
  ]
}