TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 271 of 343
TM 9-2350-358-BD
SECTION II.
COMMUNICATION SYSTEM COMPONENTS
13-4.
GENERAL
The communication system of the M109A6 consists of two AN/VRC 89A radios, one is used for voice communications, the
other for digital, two antennas, two mounts and an AN/VIC-1 intercom set consisting of the AM-1780 amplifier, five C-2298
control boxes, one C-2742 remote switching control box, four Communications Vehicular Crewman (CVC) helmets and all
associated wiring and cables.
The AN/VIC-1 allows voice intercom between the chief of section and all crew members.
Due to the complexity of the communication system in most cases BDAR is limited to replacement of the damaged
component with a like working item.
See general interchangeability information para 13-14.
13-3
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