TM 55-1930-209-14&P-19
CHAPTER 12. COMMMUNCATIONS SYSTEM PMCS
Section I. General system information
12-1. Introduction. Chapter 12 contains Preventive Maintenance Checks and Services for the Reverse Osmosis Water
Purification Barge Communications System. Operating and maintenance procedures are described in detail in TM 55-
1930-209-14&P-12. TM 55-1930-209-14&P-12, Appendix C also contains complete Preventive I Maintenance Checks
and Services for the Communication System.
12-2 Major components. The communications system consists of an Army radio, commercial marine radio, and three
walkie-talkies. The major components of the communication system are listed in Tables 12-1 through 12-3 with basic
functions and location on the barge.
Table 12-1. Major Components of Radio System
Component
Location
Function
Army AN/VRC-46
Mounted on shelf on aft
For radio communications
transceiver/i
bulkhead in dayroom
with military stations
Army M-80/GR micro-
Connected to ANNVRC-46
For transmitting voice
phone/1
transceiver on aft
messages
bulkhead in dayroom
Army PP-6224 A/U
Mounted on shelf on aft
Provides a regulated
(Barge 1) Army
bulkhead in dayroom
+25.2 Vdc for ANNRC-46
PP-2953/U (Barges 2 and
transceiver operation
3) power supply/i each
Army HF antenna
Mounted on deckhouse
For receiving or trans-
AS-1729NRC/1
top, starboard
mitting radio waves
Marine 866S VHF/FM
Mounted under shelf on aft
For radio communications
transceiver/2
bulkhead in dayroom and
within FCC-assigned
in workboat cabin
commercial marine band
Marine regulated dc
Mounted on shelf on aft
Supplies a regulated
power supply/i
bulkhead in dayroom
+13.8 Vdc power supply
for 866S VHF/FM marine
transceiver operation
Marine VHF antenna/2
Mounted on deckhouse
For receiving or trans-
top, starboard and on
mitting radio waves
workboat cabin
HX500S VHF/FM marine
Positioned in battery
For radio communications
handheld transceivers
charger on portside of
within the FCC-assigned
(walkide-talkies)/3
operator's desk or
commercial marine bank
workshop rack
Handheld transceiver
Mounted in workshop on
Supplies a 7.5 Vdc output
CSBSO AM battery
supply rack
for charging ni-cad
charger/i
battery packs
Change 1
12-1
