TM 11-5820-890-10-3
MANPACK BATTERY NEAR END OF ITS LIFE. Transmit as little as possible. Use the lowest RF switch setting which
still lets you communicate. When possible, set RT FCTN to OFF
VEHICLE SYSTEM BATTERY DEAD. If you have a dismount radio, remove an RT from its mounting adapter (or power
supply adapter); then assemble a manpack radio.
HOLD UP BATTERY (HUB) DEAD. If presets are cleared when the power is cut off, the HUB might be dead. If this
happens, re-load the presets; then keep the RT FCTN switch set to an operating position (do not set FCTN switch to
OFF). Leave CB1 on mounting adapter or power supply adapter (vehicular radios) set to ON (do not set CB1 to OFF). At
first opportunity, have HUB replaced.
VEHICULAR ANTENNA BROKEN. Try communicating on a higher SC frequency. If you have a dismount radio, remove
the antenna cable from the RT ANT connector; then connect the manpack antenna to the ANT connector.
CONTROL-MONITOR FAULTY. Maintain radio operation by local control. Set the RT FCTN switch to SQ ON. Set all
other controls as needed.
EXPOSURE TO NUCLEAR RADIATION. If you cannot contact another station after a nuclear event, do the following
steps:
a
Reset RT: Set FCTN to OFF ; then to SQ ON.
b Test RT Set RT FCTN to TST Check self-test displays for proper indications.
c
Check FH sync time Press •••/TIME button three times and note if the seconds are running
If they are, go on to step
d If they aren't, go on with steps c(1) and c(2).
(1) •
Manpack: Check battery life condition Remove battery from back of RT and reinstall it Reset battery life
condition
•
Vehicular: Set mounting adapter (or power supply adapter) CB1 to OFF; then back to ON.
(2)
FH operators: Set FH sync time
Use the net's time standard
If a time standard is not available
contact NCS; use late entry or cue procedures.
D
Communicate Set RT FCTN to normal operating position; then contact the desired station.
FILL CABLE DAMAGED Substitute vehicular cable between RT AUD/DATA connector and mounting adapter.
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