Section III. EMERGENCY OPERATION

TO 31R2-2GRC171-2

TM 11-5820-815-14

NAVELEX 0967-LP-544-5010

SECTION III

EMERGENCY OPERATION

3-12.

EMERGENCY OPERATION.

output power from the unit is automatically reduced to

approximately 4 watts. Should this condition occur,

3-13.

2-MINUTE WARMUP.

check the rack ventilation or provide additional ventilation

as required.

3-14. Under emergency conditions, the 2-minute

warmup time may be omitted and the unit placed into

3-17.

BATTERY OPERATION.

immediate operation.

3-18. With an external battery connected to the RT-

3-15.

OVERTEMPERATURE CONDITION.

980/GRC-171, if ac power failure occurs, the RT-

980/GRC-171 automatically switches to battery power

3-16. Under extremely adverse environmental and

without an interruption to the receiver- transmitter

operating conditions the RT-980/GRC-171 may go into

operation. The unit will continue to operate on battery

the overtemperature operating mode. This condition is

power until ac power is reapplied to the receiver-

determined by setting the TEST switch to TEMP and

Radio Set AN/GRC-171 will function

observing an indication in the OVER TEMP range on the

normally on both receive and transmit operation.

TEST meter. When this condition occurs, the

3-9/(3-10 blank)