{
  "contest": {
    "id": "cva-dx-cw",
    "name": "CVA DX Contest (CW)",
    "sponsor": "CRAEC",
    "sponsor_home": "https://cvadx.org/",
    "country": "BR",
    "summary": "Brazil's army-radio-club DX contest, CW leg: 27 hours on the third weekend of August.",
    "modes": [
      "CW"
    ],
    "bands": [
      "160m",
      "80m",
      "40m",
      "20m",
      "15m",
      "10m"
    ],
    "exchange": "Brazil: RS(T) plus state. Elsewhere: RS(T) plus continent. Military stations: RS(T) plus MIL.",
    "power_categories": [],
    "log_format": "Cabrillo",
    "log_deadline_days": 5,
    "log_submit_url": "https://cvadx.org/envio-de-logs",
    "timezone": "",
    "local_rolling": false,
    "eligibility": {
      "scope": "worldwide",
      "verified": true,
      "note": "Civilian and military stations worldwide."
    },
    "active_from": null,
    "active_until": null,
    "note": "'Third weekend' is read as the ordinal full weekend; the rules do not say whether it could instead count from the month's end. The 2026 CW dates (15-16 August) fit either reading.",
    "verified": true,
    "rules_url": "https://cvadx.org/regulamento/",
    "rules_url_pattern": "",
    "rules_url_archived": "",
    "rules_url_checked": "2026-10-15",
    "source_note": "cvadx.org/regulamento (updated 03/08/2026, 67th edition): 'Terceiro final de semana de agosto'; 2026 CW 15 Aug 1800 UTC to 16 Aug 2100 UTC. Cabrillo 3.0 upload, deadline 23:59 UTC on the fifth day. Read 2026-10-15."
  },
  "rule": {
    "plain": "Third full weekend of August",
    "raw": {
      "type": "nth_full_weekend",
      "month": 8,
      "n": 3
    },
    "start": {
      "day_offset": 0,
      "time": "1800"
    },
    "end": {
      "day_offset": 1,
      "time": "2100"
    },
    "sessions": null
  },
  "next": [
    {
      "contest_id": "cva-dx-cw",
      "name": "CVA DX Contest (CW)",
      "start": "2027-08-21T18:00:00Z",
      "end": "2027-08-22T21:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 27,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "CRAEC",
      "rules_url": "https://cvadx.org/regulamento/",
      "verified": true,
      "note": "'Third weekend' is read as the ordinal full weekend; the rules do not say whether it could instead count from the month's end. The 2026 CW dates (15-16 August) fit either reading.",
      "exchange": "Brazil: RS(T) plus state. Elsewhere: RS(T) plus continent. Military stations: RS(T) plus MIL.",
      "country": "BR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-10-15",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2027-08-27T21:00:00Z",
      "uid": "cva-dx-cw-20270821T1800@contestcal",
      "start_date": "2027-08-21",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "cva-dx-cw",
      "name": "CVA DX Contest (CW)",
      "start": "2028-08-19T18:00:00Z",
      "end": "2028-08-20T21:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 27,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "CRAEC",
      "rules_url": "https://cvadx.org/regulamento/",
      "verified": true,
      "note": "'Third weekend' is read as the ordinal full weekend; the rules do not say whether it could instead count from the month's end. The 2026 CW dates (15-16 August) fit either reading.",
      "exchange": "Brazil: RS(T) plus state. Elsewhere: RS(T) plus continent. Military stations: RS(T) plus MIL.",
      "country": "BR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-10-15",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2028-08-25T21:00:00Z",
      "uid": "cva-dx-cw-20280819T1800@contestcal",
      "start_date": "2028-08-19",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "cva-dx-cw",
      "name": "CVA DX Contest (CW)",
      "start": "2029-08-18T18:00:00Z",
      "end": "2029-08-19T21:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 27,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "CRAEC",
      "rules_url": "https://cvadx.org/regulamento/",
      "verified": true,
      "note": "'Third weekend' is read as the ordinal full weekend; the rules do not say whether it could instead count from the month's end. The 2026 CW dates (15-16 August) fit either reading.",
      "exchange": "Brazil: RS(T) plus state. Elsewhere: RS(T) plus continent. Military stations: RS(T) plus MIL.",
      "country": "BR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-10-15",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2029-08-24T21:00:00Z",
      "uid": "cva-dx-cw-20290818T1800@contestcal",
      "start_date": "2029-08-18",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "cva-dx-cw",
      "name": "CVA DX Contest (CW)",
      "start": "2030-08-17T18:00:00Z",
      "end": "2030-08-18T21:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 27,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "CRAEC",
      "rules_url": "https://cvadx.org/regulamento/",
      "verified": true,
      "note": "'Third weekend' is read as the ordinal full weekend; the rules do not say whether it could instead count from the month's end. The 2026 CW dates (15-16 August) fit either reading.",
      "exchange": "Brazil: RS(T) plus state. Elsewhere: RS(T) plus continent. Military stations: RS(T) plus MIL.",
      "country": "BR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-10-15",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2030-08-23T21:00:00Z",
      "uid": "cva-dx-cw-20300817T1800@contestcal",
      "start_date": "2030-08-17",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m",
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    }
  ]
}