{
  "contest": {
    "id": "ref-160m",
    "name": "REF 160 Metres",
    "sponsor": "REF",
    "sponsor_home": "https://www.r-e-f.org/",
    "country": "FR",
    "summary": "REF's top-band CW contest, Saturday evening into Sunday midnight UTC on the third weekend of November, French stations sending their department number.",
    "modes": [
      "CW"
    ],
    "bands": [
      "160m"
    ],
    "exchange": "RST + the French department number. French stations record only the serial number given by foreign stations.",
    "power_categories": [
      {
        "name": "Classe C (HP)",
        "max_watts": null
      },
      {
        "name": "Classe B (LP)",
        "max_watts": 100
      },
      {
        "name": "Classe A (QRP)",
        "max_watts": 5
      }
    ],
    "log_format": "Cabrillo",
    "log_deadline_days": 8,
    "log_submit_url": "https://concours.r-e-f.org/contest/logs/upload-form",
    "timezone": "",
    "local_rolling": false,
    "eligibility": {
      "scope": "worldwide",
      "verified": true,
      "note": "Section 5 scores 'Station etrangere contactant une station francaise', and section 5 (multipliers) gives foreign stations '1 par departement', so foreign entry is provided for and scored -- against French stations."
    },
    "active_from": null,
    "active_until": null,
    "note": "log_deadline_days is derived, not quoted: REF words the deadline as 'le deuxieme lundi apres le concours' and states no hour. The contest ends at 0000 UTC on the Sunday, and that Sunday plus 8 days is the second Monday after the contest in every year, so 8 is exact for the date and silent about the time of day. WORDING DIFFERENCE, RECORDED RATHER THAN RECONCILED: this PDF says 'Troisieme week-end de novembre' while the Coupe du REF PDF, describing the same sub-part in section 1(a), says 'Troisieme week-end entier du mois de novembre'. The two readings cannot diverge -- the third Saturday of November is at most the 21st, so its Sunday is always in November -- so no choice between them was needed.",
    "verified": true,
    "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_ref160_fr_20260421.pdf",
    "rules_url_pattern": "",
    "rules_url_archived": "",
    "rules_url_checked": "2026-08-18",
    "source_note": "concours.r-e-f.org, 'REF 160 METRES -- REGLEMENT', 1: 'DATE ET HORAIRE -- Troisieme week-end de novembre, du samedi a 1700 UTC au dimanche a 0000 UTC.' 2: 'BANDE ET MODE -- 160 metres (1810 a 1850 KHz), CW uniquement.' 3: 'REPORTS -- RST + numero du departement. Les stations francais ne noteront que le numero de serie donne par les stations etrangeres, a l'exclusion de toute autre indication.' 7: 'COMPTES RENDUS -- Informatise, au format cabrillo.' 8: 'ENVOI -- A plus tard le deuxieme lundi apres le concours'. Power classes are 'selon definitions des regles communes HF', i.e. the same A/B/C classes as the Coupe du REF. REF published 21-22 November 2026 and 15 November 2025; the third-weekend rule reproduces both."
  },
  "rule": {
    "plain": "Third full weekend of November",
    "raw": {
      "type": "nth_full_weekend",
      "month": 11,
      "n": 3
    },
    "start": {
      "day_offset": 0,
      "time": "1700"
    },
    "end": {
      "day_offset": 1,
      "time": "0000"
    },
    "sessions": null
  },
  "next": [
    {
      "contest_id": "ref-160m",
      "name": "REF 160 Metres",
      "start": "2026-11-21T17:00:00Z",
      "end": "2026-11-22T00:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 7,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m"
      ],
      "bands_note": "1810 to 1850 kHz",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_ref160_fr_20260421.pdf",
      "verified": true,
      "note": "log_deadline_days is derived, not quoted: REF words the deadline as 'le deuxieme lundi apres le concours' and states no hour. The contest ends at 0000 UTC on the Sunday, and that Sunday plus 8 days is the second Monday after the contest in every year, so 8 is exact for the date and silent about the time of day. WORDING DIFFERENCE, RECORDED RATHER THAN RECONCILED: this PDF says 'Troisieme week-end de novembre' while the Coupe du REF PDF, describing the same sub-part in section 1(a), says 'Troisieme week-end entier du mois de novembre'. The two readings cannot diverge -- the third Saturday of November is at most the 21st, so its Sunday is always in November -- so no choice between them was needed.",
      "exchange": "RST + the French department number. French stations record only the serial number given by foreign stations.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2026-11-30T00:00:00Z",
      "uid": "ref-160m-20261121T1700@contestcal",
      "start_date": "2026-11-21",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "ref-160m",
      "name": "REF 160 Metres",
      "start": "2027-11-20T17:00:00Z",
      "end": "2027-11-21T00:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 7,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m"
      ],
      "bands_note": "1810 to 1850 kHz",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_ref160_fr_20260421.pdf",
      "verified": true,
      "note": "log_deadline_days is derived, not quoted: REF words the deadline as 'le deuxieme lundi apres le concours' and states no hour. The contest ends at 0000 UTC on the Sunday, and that Sunday plus 8 days is the second Monday after the contest in every year, so 8 is exact for the date and silent about the time of day. WORDING DIFFERENCE, RECORDED RATHER THAN RECONCILED: this PDF says 'Troisieme week-end de novembre' while the Coupe du REF PDF, describing the same sub-part in section 1(a), says 'Troisieme week-end entier du mois de novembre'. The two readings cannot diverge -- the third Saturday of November is at most the 21st, so its Sunday is always in November -- so no choice between them was needed.",
      "exchange": "RST + the French department number. French stations record only the serial number given by foreign stations.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2027-11-29T00:00:00Z",
      "uid": "ref-160m-20271120T1700@contestcal",
      "start_date": "2027-11-20",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "ref-160m",
      "name": "REF 160 Metres",
      "start": "2028-11-18T17:00:00Z",
      "end": "2028-11-19T00:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 7,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m"
      ],
      "bands_note": "1810 to 1850 kHz",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_ref160_fr_20260421.pdf",
      "verified": true,
      "note": "log_deadline_days is derived, not quoted: REF words the deadline as 'le deuxieme lundi apres le concours' and states no hour. The contest ends at 0000 UTC on the Sunday, and that Sunday plus 8 days is the second Monday after the contest in every year, so 8 is exact for the date and silent about the time of day. WORDING DIFFERENCE, RECORDED RATHER THAN RECONCILED: this PDF says 'Troisieme week-end de novembre' while the Coupe du REF PDF, describing the same sub-part in section 1(a), says 'Troisieme week-end entier du mois de novembre'. The two readings cannot diverge -- the third Saturday of November is at most the 21st, so its Sunday is always in November -- so no choice between them was needed.",
      "exchange": "RST + the French department number. French stations record only the serial number given by foreign stations.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2028-11-27T00:00:00Z",
      "uid": "ref-160m-20281118T1700@contestcal",
      "start_date": "2028-11-18",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "ref-160m",
      "name": "REF 160 Metres",
      "start": "2029-11-17T17:00:00Z",
      "end": "2029-11-18T00:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 7,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m"
      ],
      "bands_note": "1810 to 1850 kHz",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_ref160_fr_20260421.pdf",
      "verified": true,
      "note": "log_deadline_days is derived, not quoted: REF words the deadline as 'le deuxieme lundi apres le concours' and states no hour. The contest ends at 0000 UTC on the Sunday, and that Sunday plus 8 days is the second Monday after the contest in every year, so 8 is exact for the date and silent about the time of day. WORDING DIFFERENCE, RECORDED RATHER THAN RECONCILED: this PDF says 'Troisieme week-end de novembre' while the Coupe du REF PDF, describing the same sub-part in section 1(a), says 'Troisieme week-end entier du mois de novembre'. The two readings cannot diverge -- the third Saturday of November is at most the 21st, so its Sunday is always in November -- so no choice between them was needed.",
      "exchange": "RST + the French department number. French stations record only the serial number given by foreign stations.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2029-11-26T00:00:00Z",
      "uid": "ref-160m-20291117T1700@contestcal",
      "start_date": "2029-11-17",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m"
      ],
      "duration_bucket": "2-12"
    },
    {
      "contest_id": "ref-160m",
      "name": "REF 160 Metres",
      "start": "2030-11-16T17:00:00Z",
      "end": "2030-11-17T00:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 7,
      "modes": [
        "CW"
      ],
      "submodes": [],
      "bands": [
        "160m"
      ],
      "bands_note": "1810 to 1850 kHz",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_ref160_fr_20260421.pdf",
      "verified": true,
      "note": "log_deadline_days is derived, not quoted: REF words the deadline as 'le deuxieme lundi apres le concours' and states no hour. The contest ends at 0000 UTC on the Sunday, and that Sunday plus 8 days is the second Monday after the contest in every year, so 8 is exact for the date and silent about the time of day. WORDING DIFFERENCE, RECORDED RATHER THAN RECONCILED: this PDF says 'Troisieme week-end de novembre' while the Coupe du REF PDF, describing the same sub-part in section 1(a), says 'Troisieme week-end entier du mois de novembre'. The two readings cannot diverge -- the third Saturday of November is at most the 21st, so its Sunday is always in November -- so no choice between them was needed.",
      "exchange": "RST + the French department number. French stations record only the serial number given by foreign stations.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2030-11-25T00:00:00Z",
      "uid": "ref-160m-20301116T1700@contestcal",
      "start_date": "2030-11-16",
      "mode_families": [
        "CW"
      ],
      "band_families": [
        "160m"
      ],
      "duration_bucket": "2-12"
    }
  ]
}