# yaml-language-server: $schema=../../../../../../_schema/ssrf-lite-0.10.0.schema.json # SSRF-Lite: OSELKA CONSTRUCTORS CO LLC (WRJS540) - Union Pier, Berrien County, MI # # Part 90 land mobile licence carrying DMR-capable emission designators, within receive # range of the Saugany Lake area (~13.9 km from the lake). Authored from FCC ULS; TX is # restricted to the licensee, so these are receive-only entries for everyone else. # # No CTCSS/DCS tone, DMR colour code, time slot or talkgroup is recorded in ULS and # none has been observed on air, so none is asserted here. $schema: "../../../../../../_schema/ssrf-lite-0.10.0.schema.json" ssrf_lite_version: "0.10.0" ssrf_lite: sources: - name: "FCC ULS License Search - WRJS540 (OSELKA CONSTRUCTORS CO LLC)" url: "https://wireless2.fcc.gov/UlsApp/UlsSearch/searchLicense.jsp?searchType=call&callSign=WRJS540" accessed: "2026-10-10" - name: "FCC ULS weekly bulk dump (HD/EN/LO/FR/EM tables), week of 2026-10-04" url: "https://data.fcc.gov/download/pub/uls/complete/l_LMpriv.zip" accessed: "2026-10-10" organizations: - id: org_oselka_constructors name: "OSELKA CONSTRUCTORS CO LLC (Union Pier, MI)" locations: - id: loc_oselka_constructors_1 name: "10900 Kruger Road, Union Pier, MI (ULS Location 1)" lat: 41.806972 lon: -86.715694 stations: - id: stn_wrjs540 call_sign: "WRJS540" organization_id: org_oselka_constructors location_id: loc_oselka_constructors_1 service: "business_itinerant_part90" antennas: - id: ant_wrjs540_1 station_id: stn_wrjs540 name: "WRJS540 fixed site, ULS Location 1" authorizations: - id: auth_wrjs540 authority: "FCC" service: "business_itinerant_part90" class: "Part 90 Business/Industrial" identifier: "WRJS540" notes: > Active FCC licence, IG - Industrial/Business Pool, Conventional. Granted 10/20/2020, expires 10/20/2030, current authorisation effective 10/20/2020. FRN 0029996287. ULS lists 3 location(s). Mobile operation is authorised within 32.0 km of the fixed site. TX is restricted to the licensee; receive-only for everyone else. rf_chains: - id: chain_wrjs540_463p975_1 station_id: stn_wrjs540 antenna_id: ant_wrjs540_1 tx: freq_mhz: 463.975 emission: "7K60FXW" power_w: 45 bandwidth_khz: 12.5 rx: freq_mhz: 468.975 mode: type: "FM" notes: > ULS Location 1, station class FB2, 45 W output / 70 W ERP. Input 468.975 (+5.0000 MHz split), carried on the licence as a mobile/control-station frequency. Authorised emissions: 7K60FXW. Includes 7K60FXW, so DMR is authorised here, but the on-air mode has not been observed - treat FM as the default and search for DMR. assignments: - id: asgn_wrjs540_463p975_1 short_name: "OSEL1" channel_name: "WRJS540 463.975" rf_chain_id: chain_wrjs540_463p975_1 usage: "repeater" authorization_id: auth_wrjs540 notes: "Output 463.975 / input 468.975. Receive-only for non-licensees; tone/colour code unknown."