OPERATION OF AUXILIARY EQUIPMENTCONTINUED
INSTALLING COMMUNICATIONS EQUIPMENT CONTINUED
Receiver-transmitters RT-66/GR, RT-67/GR,
and RT-68/GR provide intervehicle com-
munication. Sets are identical in shape and
size and differ only in frequency band in
which they operate.
Components for each radio set are installed
on mounting MT-297/GR. Mounting is a steel-
frame unit with equally spaced, recessed
channels, running from front to rear. Latches
for locking feet of components in channels
are activated by levers along front edge of
mounting. Shock mounts attach mounting
surface to holddown plates. U-shaped ter-
minal box contains power and control wiring
Power supply PP-112/GRC is a 24-volt
vibrator which powers receiver-transmitter.
AF amplifier AM-65/GRC contains audio
amplifier and mixer circuits necessary to pro-
vide interphone communication and radio
monitoring at control box C-375/GRC.