FLTSATCOM-3 or Fleetsatcom-3 (FSC-3) was a communications satellite that was used by the United States Navy for communications between aircraft, ships, submarines and ground stations. Fleetsatcom 3 gave 30 voice and 12 teletypewriter communications channels simultaneously in the UHF band. The UHF up-link was in the 290 to 320 MHz range while down-link was in the 240 to 320 MHz range. A number of channels were reserved for high priority communications by the United States Air Force. These were ground to air communications between SAC aircraft, the E-3A airborne warning and control system and elements of the presidential command structure. FSC-3's life officially ended in September 1995.