{
  "contest": {
    "id": "ref-coupe-du-ref-ssb",
    "name": "Coupe du REF, SSB",
    "sponsor": "REF",
    "sponsor_home": "https://www.r-e-f.org/",
    "country": "FR",
    "summary": "The phone half of France's national HF championship: 36 hours over the last full weekend in February, 80 through 10 metres, French stations sending their department number.",
    "modes": [
      "SSB"
    ],
    "bands": [
      "80m",
      "40m",
      "20m",
      "15m",
      "10m"
    ],
    "exchange": "French metropolitan stations send RS(T) + the number of the department where the antenna is located (e.g. 599 69); F6REF, the REF's official station, sends RS(T) + 00. DOM/TOM stations send RS(T) + the prefix of their entity (e.g. 599 FM). Foreign stations send RS(T) + a serial number starting at 001.",
    "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": "As for the CW part: foreign stations have their own categories and a per-continent ranking, but 4(b) says 'Seules les liaisons avec des stations francaises sont valables.'"
    },
    "active_from": null,
    "active_until": null,
    "note": "CONTRADICTION IN REF'S OWN DOCUMENT, RECORDED RATHER THAN RECONCILED: section 1(b) scopes these two parts to 'Bandes HF (80-10 m)' and the English rules list '80, 40, 20, 15, 10 m', but section 3(c) of the same PDF says 'Segments concours IARU des bandes 160, 80, 40, 20, 15 et 10 metres'. The document also governs the 160 m sub-part (REF 160 Metres, a separate record here), which is the likely reason the band is listed in 3(c); the 80-10 m reading is encoded because it is the one that scopes these parts specifically and the one the English rules repeat. REF's common HF rules ('Regles communes a tous les concours HF', 6A) state the deadline as '8 (huit) jours apres la fin du concours a minuit heure legale francaise', so the computed instant here is the end plus 8 days rather than French legal midnight.",
    "verified": true,
    "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_cdfhf_fr_20260513.pdf",
    "rules_url_pattern": "",
    "rules_url_archived": "",
    "rules_url_checked": "2026-08-18",
    "source_note": "concours.r-e-f.org, 'Championnat de France - « Coupe du REF »', 1(b): 'Bandes HF (80-10 m) -- Dernier week-end entier du mois de janvier (telegraphie) ou fevrier (telephonie), du samedi a 0600 UTC au dimanche a 1800 UTC.' English rules, 2: 'SSB: Last full weekend in February. ... Starts 0600 UTC Saturday; ends 1800 UTC Sunday'. Bands and modes, English rules (reg_cdfhfdx_en_20260420.docx, 'French HF Championship \"Coupe du REF\" rules'): '80, 40, 20, 15, 10 m, according to IARU band plan for each country, CW and Phone.' Power classes, FR 2(c): 'Classe A (QRP) : la puissance est inferieure ou egale a 5 W, Classe B (LP) : la puissance est superieure a 5 W et inferieure ou egale a 100 W, Classe C (HP) : la puissance est superieure a 100 W.' Log deadline, FR 9: 'Comptes rendus au format Cabrillo a deposer sur la page de la commission des concours au plus tard huit jours apres la partie du concours disputee' -- EN 8: 'All log entries must be postmarked no later than 8 days after the contest' -- so log_deadline_days is 8. REF published 21-22 February 2026 and 22-23 February 2025 for the SSB part; the last-full-weekend rule reproduces both."
  },
  "rule": {
    "plain": "Last full weekend of February",
    "raw": {
      "type": "nth_full_weekend",
      "month": 2,
      "n": -1
    },
    "start": {
      "day_offset": 0,
      "time": "0600"
    },
    "end": {
      "day_offset": 1,
      "time": "1800"
    },
    "sessions": null
  },
  "next": [
    {
      "contest_id": "ref-coupe-du-ref-ssb",
      "name": "Coupe du REF, SSB",
      "start": "2027-02-27T06:00:00Z",
      "end": "2027-02-28T18:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 36,
      "modes": [
        "SSB"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_cdfhf_fr_20260513.pdf",
      "verified": true,
      "note": "CONTRADICTION IN REF'S OWN DOCUMENT, RECORDED RATHER THAN RECONCILED: section 1(b) scopes these two parts to 'Bandes HF (80-10 m)' and the English rules list '80, 40, 20, 15, 10 m', but section 3(c) of the same PDF says 'Segments concours IARU des bandes 160, 80, 40, 20, 15 et 10 metres'. The document also governs the 160 m sub-part (REF 160 Metres, a separate record here), which is the likely reason the band is listed in 3(c); the 80-10 m reading is encoded because it is the one that scopes these parts specifically and the one the English rules repeat. REF's common HF rules ('Regles communes a tous les concours HF', 6A) state the deadline as '8 (huit) jours apres la fin du concours a minuit heure legale francaise', so the computed instant here is the end plus 8 days rather than French legal midnight.",
      "exchange": "French metropolitan stations send RS(T) + the number of the department where the antenna is located (e.g. 599 69); F6REF, the REF's official station, sends RS(T) + 00. DOM/TOM stations send RS(T) + the prefix of their entity (e.g. 599 FM). Foreign stations send RS(T) + a serial number starting at 001.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2027-03-08T18:00:00Z",
      "uid": "ref-coupe-du-ref-ssb-20270227T0600@contestcal",
      "start_date": "2027-02-27",
      "mode_families": [
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "ref-coupe-du-ref-ssb",
      "name": "Coupe du REF, SSB",
      "start": "2028-02-26T06:00:00Z",
      "end": "2028-02-27T18:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 36,
      "modes": [
        "SSB"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_cdfhf_fr_20260513.pdf",
      "verified": true,
      "note": "CONTRADICTION IN REF'S OWN DOCUMENT, RECORDED RATHER THAN RECONCILED: section 1(b) scopes these two parts to 'Bandes HF (80-10 m)' and the English rules list '80, 40, 20, 15, 10 m', but section 3(c) of the same PDF says 'Segments concours IARU des bandes 160, 80, 40, 20, 15 et 10 metres'. The document also governs the 160 m sub-part (REF 160 Metres, a separate record here), which is the likely reason the band is listed in 3(c); the 80-10 m reading is encoded because it is the one that scopes these parts specifically and the one the English rules repeat. REF's common HF rules ('Regles communes a tous les concours HF', 6A) state the deadline as '8 (huit) jours apres la fin du concours a minuit heure legale francaise', so the computed instant here is the end plus 8 days rather than French legal midnight.",
      "exchange": "French metropolitan stations send RS(T) + the number of the department where the antenna is located (e.g. 599 69); F6REF, the REF's official station, sends RS(T) + 00. DOM/TOM stations send RS(T) + the prefix of their entity (e.g. 599 FM). Foreign stations send RS(T) + a serial number starting at 001.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2028-03-06T18:00:00Z",
      "uid": "ref-coupe-du-ref-ssb-20280226T0600@contestcal",
      "start_date": "2028-02-26",
      "mode_families": [
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "ref-coupe-du-ref-ssb",
      "name": "Coupe du REF, SSB",
      "start": "2029-02-24T06:00:00Z",
      "end": "2029-02-25T18:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 36,
      "modes": [
        "SSB"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_cdfhf_fr_20260513.pdf",
      "verified": true,
      "note": "CONTRADICTION IN REF'S OWN DOCUMENT, RECORDED RATHER THAN RECONCILED: section 1(b) scopes these two parts to 'Bandes HF (80-10 m)' and the English rules list '80, 40, 20, 15, 10 m', but section 3(c) of the same PDF says 'Segments concours IARU des bandes 160, 80, 40, 20, 15 et 10 metres'. The document also governs the 160 m sub-part (REF 160 Metres, a separate record here), which is the likely reason the band is listed in 3(c); the 80-10 m reading is encoded because it is the one that scopes these parts specifically and the one the English rules repeat. REF's common HF rules ('Regles communes a tous les concours HF', 6A) state the deadline as '8 (huit) jours apres la fin du concours a minuit heure legale francaise', so the computed instant here is the end plus 8 days rather than French legal midnight.",
      "exchange": "French metropolitan stations send RS(T) + the number of the department where the antenna is located (e.g. 599 69); F6REF, the REF's official station, sends RS(T) + 00. DOM/TOM stations send RS(T) + the prefix of their entity (e.g. 599 FM). Foreign stations send RS(T) + a serial number starting at 001.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2029-03-05T18:00:00Z",
      "uid": "ref-coupe-du-ref-ssb-20290224T0600@contestcal",
      "start_date": "2029-02-24",
      "mode_families": [
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    },
    {
      "contest_id": "ref-coupe-du-ref-ssb",
      "name": "Coupe du REF, SSB",
      "start": "2030-02-23T06:00:00Z",
      "end": "2030-02-24T18:00:00Z",
      "start_wall": null,
      "end_wall": null,
      "local_rolling": false,
      "timezone": "",
      "duration_hours": 36,
      "modes": [
        "SSB"
      ],
      "submodes": [],
      "bands": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "bands_note": "",
      "sponsor": "REF",
      "rules_url": "https://concours.r-e-f.org/reglements/actuels/reg_cdfhf_fr_20260513.pdf",
      "verified": true,
      "note": "CONTRADICTION IN REF'S OWN DOCUMENT, RECORDED RATHER THAN RECONCILED: section 1(b) scopes these two parts to 'Bandes HF (80-10 m)' and the English rules list '80, 40, 20, 15, 10 m', but section 3(c) of the same PDF says 'Segments concours IARU des bandes 160, 80, 40, 20, 15 et 10 metres'. The document also governs the 160 m sub-part (REF 160 Metres, a separate record here), which is the likely reason the band is listed in 3(c); the 80-10 m reading is encoded because it is the one that scopes these parts specifically and the one the English rules repeat. REF's common HF rules ('Regles communes a tous les concours HF', 6A) state the deadline as '8 (huit) jours apres la fin du concours a minuit heure legale francaise', so the computed instant here is the end plus 8 days rather than French legal midnight.",
      "exchange": "French metropolitan stations send RS(T) + the number of the department where the antenna is located (e.g. 599 69); F6REF, the REF's official station, sends RS(T) + 00. DOM/TOM stations send RS(T) + the prefix of their entity (e.g. 599 FM). Foreign stations send RS(T) + a serial number starting at 001.",
      "country": "FR",
      "rules_url_archived": "",
      "rules_url_checked": "2026-08-18",
      "can_enter": true,
      "eligibility_scope": "worldwide",
      "eligibility_reason": "",
      "works": "everyone",
      "practical": "",
      "log_due": "2030-03-04T18:00:00Z",
      "uid": "ref-coupe-du-ref-ssb-20300223T0600@contestcal",
      "start_date": "2030-02-23",
      "mode_families": [
        "SSB"
      ],
      "band_families": [
        "80m",
        "40m",
        "20m",
        "15m",
        "10m"
      ],
      "duration_bucket": "gte24"
    }
  ]
}