(3) Ensure that the set is connected to an appropriate power source.
c. Operational (OP) check for radio set AN/GRC-193 (see Table 5).
(1) Preset controls.
(2) Set TTY ON/OFF/SPKR ON switch of AM-6879 to OFF.
(3) Turn SQUELCH OFF/MAX switch of AM-6879 to midrange.
(4) Press CB1 and CB2 of AM-6545.
(5) Turn MODE switch RT-1209 to V-TR position.
(6) Turn SB switch of RT-1209 to USB.
(7) Push FREQUENCY KHZ switches of RT-1209 to display 05000.0 kHz.
Table 5.
EPC
CAUTION
IF BANDSWITCH MOTOR IN PA RUNS CONTINUOUSLY (AUDIBLE INDICATION) AND THE FAULT
LIGHT IS ON, DO NOT ATTEMPT/TRY FURTHER TUNING OR TRANSMIT OPERATION.
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