GNSS / SBAS RECEIVER A RELIABLE ADS-B POSITION AND TIMING SOURCE FOR MODERN G L O B A L A I R S PA C E 1203C A Trusted Navigation Foundation Certified, high-integrity position and timing data for operators managing complex airspace through every phase of flight. Engineered for rule-compliant navigation across all phases of flight, the 1203C integrates into legacy and modern avionics architectures alike. TSO-C145c certification, multiple STCs and approval as an ADS-B position and timing source simplify regulatory compliance while reducing installation complexity. Built for Complex Airspace and Harsh Environments From RF-dense terminal areas to remote and underserved regions, the 1203C maintains navigation integrity when conditions are less than ideal, with RAIM monitoring and recovery from minor active spoofing events. SBAS-Enhanced Precision Multi-constellation GNSS and SBAS support including KASS and SouthPAN, delivering consistent accuracy and availability as new satellite systems come online. Designed for Retrofit Efficiency Designed for Long-Term Value A compact, low-SWaP LRU with straightforward integration into existing avionics and extensive STC coverage across Part 23 and Part 25 aircraft. Field experience exceeding 100,000 hours MTBF means fewer removals, reduced maintenance exposure and consistent fleet availability over the life of the aircraft. BUILDING A COMPLIANT ADS-B OUT SYSTEM The 1203C is approved under AC 20-165B as a certified ADS-B Out position and timing source. Paired with a compatible, certified Mode S Extended Squitter transponder, it forms a fully compliant ADS-B Out system. STC coverage spans Part 23 and Part 25 aircraft across transponders from Becker Avionics, Rockwell Collins, Honeywell, ACSS and BAE, held by FreeFlight Systems and a range of third-party STC owners. Confirm the approved pairing for your airframe before quoting. The receiver also supports TAWS, FMS, RNP operations and CPDLC timestamping when integrated with compatible avionics. TSO-C145c Class Beta 1, DO-160F, DO-178 Level C. Approved AC 20-165B position source, compliance with DO-229D. Approvals, certificate numbers and installation contacts are published in the FreeFlight Systems STC library. SUPPLIED WITH 1203C receiver LRU and GPS/WAAS antenna. Get the full specifications. The 1203C datasheet covers technical specifications, certification detail and the approved transponder pairing table. Shape the Skies. NextGen leader. Industry expert. Trusted partner. Get the Datasheet freeflightsystems.com [email protected] | +1 254.662.0000 | UK +44 20 3540 1777