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BA-30s, for the local control unit has a life expectancy
6. Handset H-189/PT: Allows an operator to
of 72 hours.
radio.
SETUP PROCEDURES USING RADIO SET
REMOTE CONTROL UNIT.-- The remote con-
AN/PRC-77.-- The setup procedures for the AN/PRC-77
trol unit (fig. 11-10) allows the operator at the remote
radio set used in conjunction with the AN/GRA-39 radio
site to transmit or receive through a radio set from a
control group includes the following steps:
1. Setup the radio set and establish communication
for the remote control unit has a life expectancy of 24
hours.
with a distant station before removing.
LOCAL CONTROL UNIT.-- The local control unit
2. Ensure the Radio Control Group AN/GRA-39 is
(fig. 11-11) is of the same general construction as the
complete and that 12 BA-30s and field wire are
remote control unit. The local control unit is connected
available.
to the remote control unit by field wire. The local control
3. Installation of the batteries requires the
unit is connected to the radio set being remote with the
following procedures:
audio connector. The power supply, composed of six
11-13