Plessey PRC 320/1 - Page 33

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2.7.2

In

the

case

of

ап

end-fed

antenna,

set

the

antenna

length

and

the

switches

according

to

the

table,

e.g.

for

а

frequency

of

5.763

MHz

set

the

antenna

to

a

length

of

52

metres

and the

switches

to

C

and

7.

Complete

the

tuning

procedure

as

indicated

in

Fig.6.

2.7.5

In

the

case

of

a

dipole

antenna

using

a

dipole

centre

junction

and

antenna

feeder

cable,

antenna

tuning

is

performed

solely

by

adjusting

the

length

of

each

dipole

element

to

the

nearest

frequency

listed

in

the

table,

e.g.

fora

frequency

of

5.763

MHz,

set the

әш

of

each

element

to

11.5

metres.

2.7.4

Іп

the

case

of

a

dipole

antenna

in

which

the

elements

are

connected

directly

to

the

RT320/1

(V

dipole),

the

switches

are

set

as

shown

in

addition

to

adjusting

the

element

lengths,

e.g.

for

а

frequency

of

5.763

MHz,

set

each

dipole

element

to

a

length

of

11.5

metres.

Set

the

switches

to

C

and

the

position

between

5

and

7

inclusive

which

enables

the

highest

meter

reading

to

be

achieved

when

adjusting

the

TUNE

control.

Complete

the

tuning

procedure

as

indicated

in

Fig.6.

21

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