Test of DME/TACAN Transponders

This application note describes the operating principle of DME (Distance Measurement Equipment) that is used for distance measurement in aviation.  It also describes various test scenarios for the maintenance of a DME transponder.  These tests require an R&S® SMA100A Signal Generator with a R&S® SMA-K26 DME modulation option and a R&S® NRP-Z81 Wideband Power Sensor.

Useful Links

US Department of Homeland Security: Weekly GPS Almanac Data Updates https://www.navcen.uscg.gov/?pageName=gpsAlmanacs Russian Federal Space Agency for GLONASS Almanac Data Distribution https://www.glonass-iac.ru/en/