Radio transmitter BC-446-J and remote control unit RM-45-A - USA Voorschrift, Technical Manual, 11-811 Instruction book (operating) for radio set SCR-522-A, radio set SCR-522-T2, radio set SCR-542-A, radio set SCR-542-T2, manufactured by the Bendix Radio Corporation / publ. by … Infantry communication data radio amateur's handbook / by the Headquarters staff of the American Radio Relay League
