Plessey PRC 320/1 - Installation

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CHAPTER

THREE

USE

OF

RADIO

IN

A

VEHICLE

INTRODUCTION

5.1

When

used

in

a

vehicle,

the

RT320/1

is

secured

by

its

carrier

to

a

bench

or

wall-mounted

rack

and

connected

via

its

antenna

terminal

to

the

vehicle

whip

antenna.

The

equipment

can

be

connected

directly

to

а

headset,

handset

or

morse

key,

as

in

the

manpack

role,

or

into

the

vehicle

harness

via

a

control,

radio

set,

local/remote

(CRL/R)

and

interconnecting

box,

harness

adaptor

(IBHA),

as

shown

in

block

diagram

form

in

Fig.20.

ІҒ

а

loudspeaker

output

is

required,

the

PV2324

amplifier-loudspeaker

сап

be

connected

to

one

of

the

RT220/1

audio

sockets.

The

battery

is

normally

float-charged

by

either

a

14V

or

28V

input

d.c.

charging

unit

(DCCU),

depending

on

the

vehicle

electrical

suppiy.

Under

no

circumstances

is

the

RT320/1

to

be

powered

directly

by

the

vehicle

electrical

supply

as

damage

could

result

from

so

doing.

INSTALLATION

5.2

Fitting

PV1316

vehicle

whip

antenna

(Fig.21).

Proceed

as

follows:-

5.2.1

Determine

the

required

location

of

the

antenna,

which

must

be

sited

clear

of

all

obstructions

to

prevent

а

short-circuit

to

the

vehicie

frame,

and

in

the

selected

position

cut

a

hole

of

approximately

25mm

diameter

to

accommodate

the

seal

on

the

antenna

feeder.

5.2.2

Pass

through

the

hole

the

free

end

of

the

antenna

feeder

and

the

cord

attached

to

the

Seal,

and

bolt

the

sprung

base

to

the

vehicle

over

the

centre

of

the

hole.

49

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