TM-9-2350-275-BD Battlefield Damage Assessment and Repair for M113 Family Download
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TM 9-2350-275-BD COMMUNICATIONS SYSTEM (1) The AN/VRC-12 consists of a RT-246 receiver-transmitter which has 10 preset channels which can be automatically switched and tuned by means of the C-2742 remote switching control box and a R-442 auxiliary receiver. (2) The AN/VRC-47 consists of a RT-524 receiver-transmitter and R-442 auxiliary receiver. (3) The AN/VRC-64 consists of a RT-841 receiver-transmitter, an AM-2060 amplifier and a R-442 auxiliary receiver. c. The two currently used speech security systems provide for secure voice communications when used in conjunction with any of the receiver-transmitters mentioned above. (1) The Vinson speech security system consists of a J-3513 interconnection box, 335-14 distribution box, KY-57 speech security device, MT-4626 mount and all associated wiring and cables. (2) The Nestor speech security system consists of a 3-2731 distribution box, 3- 3024 interconnection box, KY-38 speech security device, MT-3823 mount, AM-4979 amplifier and all associated wiring and cables. 11-2