The AN/TRC-80 Radio Terminal Set was a United States Army communications system that provided line-of-sight or tropospheric scatter voice and teletypewriter communications between Pershing missile firing units and higher headquarters. Commonly known as the "Track 80", it was built by Collins Radio and first delivered in 1960. It provided five voice and one FSK teletypewriter channels. The voice channels were not secure, but teletypewriter channel could be secured by using the KW-7 Electronic Teletypewriter Security Equipment. The frequency range was 4.4–5.0 GHz with a power output of 1 kW.