# yaml-language-server: $schema=../../../../../../_schema/ssrf-lite-0.10.0.schema.json $schema: "../../../../../../_schema/ssrf-lite-0.10.0.schema.json" ssrf_lite_version: "0.10.0" ssrf_lite: sources: - name: "Marin Amateur Radio Society - Frequency List" url: "https://w6sg.net/site/public-service/frequency-list/" accessed: "2026-11-06" # Contra Costa County, CA amateur repeaters - the Danville end of the drive. # Transcribed from the Marin Amateur Radio Society frequency list, which # publishes the CCRA and 4Cs systems. organizations: - id: org_4cs name: "4CS" - id: org_ccra name: "CCRA" locations: - id: loc_ccra_kregor name: "Kregor Peak (Clayton), Contra Costa County, CA (approx)" - id: loc_ccra_baldpeak name: "Bald Peak (Orinda), Contra Costa County, CA (approx)" - id: loc_ccra_highland name: "Highland Peak (San Ramon), Contra Costa County, CA (approx)" - id: loc_fourcs_145110 name: "Sobrante Ridge (El Sobrante), Contra Costa County, CA (approx)" - id: loc_fourcs_224300 name: "Sobrante Ridge (El Sobrante), Contra Costa County, CA (approx)" - id: loc_fourcs_444275 name: "El Sobrante, Contra Costa County, CA (approx)" stations: - id: stn_ccra_kregor call_sign: "WA6HAM" organization_id: org_ccra location_id: loc_ccra_kregor service: "amateur" - id: stn_ccra_baldpeak call_sign: "WA6HAM" organization_id: org_ccra location_id: loc_ccra_baldpeak service: "amateur" - id: stn_ccra_highland call_sign: "WA6HAM" organization_id: org_ccra location_id: loc_ccra_highland service: "amateur" - id: stn_fourcs_145110 call_sign: "WA6KQB" organization_id: org_4cs location_id: loc_fourcs_145110 service: "amateur" - id: stn_fourcs_224300 call_sign: "WA6KQB" organization_id: org_4cs location_id: loc_fourcs_224300 service: "amateur" - id: stn_fourcs_444275 call_sign: "WA6KQB" organization_id: org_4cs location_id: loc_fourcs_444275 service: "amateur" rf_chains: - id: chain_ccra_kregor station_id: stn_ccra_kregor tx: freq_mhz: 147.7350 emission: "16K0F3E" bandwidth_khz: 25 rx: freq_mhz: 147.1350 mode: type: "FM" ctcss_tx_hz: 107.2 ctcss_rx_hz: 107.2 - id: chain_ccra_baldpeak station_id: stn_ccra_baldpeak tx: freq_mhz: 145.4900 emission: "16K0F3E" bandwidth_khz: 25 rx: freq_mhz: 144.8900 mode: type: "FM" ctcss_tx_hz: 107.2 ctcss_rx_hz: 107.2 - id: chain_ccra_highland station_id: stn_ccra_highland tx: freq_mhz: 145.4100 emission: "16K0F3E" bandwidth_khz: 25 rx: freq_mhz: 144.8100 mode: type: "FM" ctcss_tx_hz: 107.2 ctcss_rx_hz: 107.2 - id: chain_fourcs_145110 station_id: stn_fourcs_145110 tx: freq_mhz: 145.1100 emission: "16K0F3E" bandwidth_khz: 25 rx: freq_mhz: 144.5100 mode: type: "FM" ctcss_tx_hz: 82.5 ctcss_rx_hz: 82.5 - id: chain_fourcs_224300 station_id: stn_fourcs_224300 tx: freq_mhz: 224.3000 emission: "16K0F3E" bandwidth_khz: 25 rx: freq_mhz: 222.7000 mode: type: "FM" ctcss_tx_hz: 82.5 ctcss_rx_hz: 82.5 - id: chain_fourcs_444275 station_id: stn_fourcs_444275 tx: freq_mhz: 444.2750 emission: "16K0F3E" bandwidth_khz: 25 rx: freq_mhz: 449.2750 mode: type: "FM" authorizations: - id: auth_fcc_amateur_t authority: "FCC" service: "amateur" class: "Technician or higher" identifier: null notes: "TX requires a US amateur license." assignments: - id: asgn_ccra_kregor short_name: "KRG735" channel_name: "WA6HAM 147.735" rf_chain_id: chain_ccra_kregor usage: "repeater" authorization_id: auth_fcc_amateur_t notes: >- Contra Costa Repeater Association, linked. verified: date: "2026-11-06" method: "published" by: "KC9MHE" note: "Club-published listing only. Not monitored on air." - id: asgn_ccra_baldpeak short_name: "BLD490" channel_name: "WA6HAM 145.490" rf_chain_id: chain_ccra_baldpeak usage: "repeater" authorization_id: auth_fcc_amateur_t notes: >- CCRA linked. verified: date: "2026-11-06" method: "published" by: "KC9MHE" note: "Club-published listing only. Not monitored on air." - id: asgn_ccra_highland short_name: "HGH410" channel_name: "WA6HAM 145.410" rf_chain_id: chain_ccra_highland usage: "repeater" authorization_id: auth_fcc_amateur_t notes: >- CCRA linked. Closest machine to the Danville destination. verified: date: "2026-11-06" method: "published" by: "KC9MHE" note: "Club-published listing only. Not monitored on air." - id: asgn_fourcs_145110 short_name: "SOB110" channel_name: "WA6KQB 145.110" rf_chain_id: chain_fourcs_145110 usage: "repeater" authorization_id: auth_fcc_amateur_t notes: >- Contra Costa Communications Club (4Cs). verified: date: "2026-11-06" method: "published" by: "KC9MHE" note: "Club-published listing only. Not monitored on air." - id: asgn_fourcs_224300 short_name: "SOB224" channel_name: "WA6KQB 224.300" rf_chain_id: chain_fourcs_224300 usage: "repeater" authorization_id: auth_fcc_amateur_t notes: >- 4Cs 1.25m machine, -1.6 MHz split. verified: date: "2026-11-06" method: "published" by: "KC9MHE" note: "Club-published listing only. Not monitored on air." - id: asgn_fourcs_444275 short_name: "SOB275" channel_name: "WA6KQB 444.275" rf_chain_id: chain_fourcs_444275 usage: "repeater" authorization_id: auth_fcc_amateur_t notes: >- 4Cs 70cm. CTCSS tone was truncated on the source page and is not recorded. verified: date: "2026-11-06" method: "published" by: "KC9MHE" note: "Club-published listing only. Not monitored on air."