MIL-T-29516, MILITARY SPECIFICATION: TRANSCEIVER, SECURE, AND ANCILLARY EQUIPMENT (15 JAN 1983)., This specification covers the requirements for the Secure Transceiver, hereinafter referred to as the transceiver, and ancillary equipments consisting of: a.) Vehicular adapter, b.)Power amplifier (if not included in vehicular agapter), c.) Loudspeaker (if not included in vehicular adapter), d.) Cable, Special Purpose Electrical, CX-13016()/U, or equivalent, e.) Battery Box, CY-7518()/U, or equivalent, f.) Handset, H-250()/U, or equivalent, g.) Tape Antenna, AT-892()/PRC, or equivalent.