OTHER OPERATOR PROCEDURES

TM 11-5820-890-10-8

5.7.

OTHER OPERATOR PROCEDURES

Battery Life Condition Indicator

5.7a.

Manpack and dismount radios are battery powered. A "Battery Life

MANPACK RADIOS

Indicator" built into the SINCGARS RT will give you an estimate of

battery usage which you must convert into an estimate of remaining

battery life.

During radio assembly, note if the main power battery is new or used. If

DURING ASSEMBLY

it is used, note the number written on the side of the battery.

If battery IS used, upon completion of radio assembly, load battery life

IF USED BATTERY

indicator (number on side of battery). No action required if battery is

new.

Set FCTN to LD, press BATT, note 00 in display, press CLR, enter

battery life indicator number, and press STO.

Battery life Indicator of used battery has now been entered into the

During radio operation, you can determine an estimated status of

main battery power by following these steps.

With FCTN at SQ ON, press BATT and read battery life indicator.

A reading of 11 or higher may mean that your main battery is

nearing exhaustion. (This reading is at best a estimate based on

usage computations by the RT.)

During combat and operational missions, you may want to replace the

IN COMBAT

main battery when the battery life indicator reads 11 or higher for

RT-1523/A/B/C/D (See Figure 5-23), or 1/8 for RT-1523E, or you

may wait until your battery is exhausted before changing it. (One

indicator of a weak manpack radio battery is a signal strength display

reading of 3 or less when you PTT with RF PWR set to HI.)

For training, continue to use your main power battery until it is

FOR TRAINING

exhausted. (This is to save batteries and money.)

Upon completing a mission, when the main battery is to be removed,

RECORDING USAGE

note and record battery life on the side of the battery. The Battery Life

Indicator must be read before FCTN is set to OFF, or battery life

data will be lost.

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