CHAPTER 3. OPERATION - TM-11-5820-509-120024

TM 11-5820-509-12

CHAPTER 3

OPERATION

WARNING

Before operating this equipment, make sure that all requirements of TB SIG 291 are satisfied. Injury or DEATH can result

from improper or careless operation.

Section I. CONTROLS AND INDICATORS

3-1. Control Panel

3-2. Description of Front Panel Controls,

All controls, indicators, and receptacles used by the

Indicators, and Receptacles .

operator are located on the front panel of Receiver-

Each panel-mounted control or indicator (fig. 3-1) is

Transmitter, Radio RT-671 /PRC-47. The front panel

listed in the following chart and a functional description is

controls and indicators are illustrated in figure 3-1 and

provided to assist the operator in the proper performance

described in detail in paragraph 3-2.

of his duties.

Figure 3-1. Receiver- Transmitter, Radio RT-671/PRC -7, front panel controls, indicators, and receptacles.

Control. indicator.

Control indicator,

or receptacle

Function

or receptacle

Function

ANTENNA

connector

Threaded fastener in bowl insulator to

deflection of this meter; when

which whip antenna, long-wire

BATTERY

antenna, or vehicular antenna lead-in

TEST pushbutton is pressed, and a

wire is individually attached.

power source is connected to the

XMTR OUTPUT meter

Performs two functions: during

radio set, indicates (white area)

tuning of the power amplifier,

whether input power is within

optimum adjustment of POWER

tolerance.

AMPLIFIER LOAD and POWER

POWER 20A DC fuse

A 20-ampere cartridge-type fuse that

AMPLIFIER TUNE controls results

protects the primary power source

in maximum needle

circuit when a dc input is connected

to the receiver-transmitter POWER

connector.

3-1