The AN/PSC-7 is exclusively for use in the Commanders WarFighter Network. This radio is an improved version of the HST-4A and includes improvements of increased power output, 30 percent more efficient, better off-frequency noise regection and compatibility to the KY-99. It provides satellite or LOS communication in data or voice modes. The small, lightweight transceiver operates in the UHF band from 225 to 400 MHz. A two-card modem is built in providing 1200 or 2400 bp/s data capability as well as up to 16 kb/s FSK to transmit and receive.