CT Systems Wavetek 2500 - Page 50

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3.4.8

Relative

Signal

Strength

Measurements

Refer

to

Figure

3-10

for

the

following

test

procedure.

1)

Attach

antenna

to

RF

in/out

connector.For

measuring

remote

sites,

connect

to

an

outside

antenna.

2)

Select

RCV

mode.

3)

Program

frequency

to

be

monitored

in

MHz

using

the

numerical

keys

followed

by

the

ENTER

key.

4)

Open

Squench

control.

5)

Select

SHIFT

WATTS.

6)

Compare

signal

strength

reading

with

last

"known

good"

indication,

or

use

to

compare

two

transmitters

of

the

same

output

power,

and

approximate

location.

NOTE:

Several

comparisons

using

t~e

instrument

should

be

made

to

determine

what

a

"correct"

reading

for

a

local

transmitter

should

be.

This

may

also

require

taking

the

test

readings

at

the

same

time

of

day

as

the

sample

reading

due

to

changing

atmospheric

conditions.

7)

Signal

strength

meter

compression

begins

when

received

signals

exceed

3

mV

or

more.

Relative

signal

strength

can

be

meausred

above

this

level

by

inserting

an

external

pad

in

line

with

the

antenna

or

by

reducing

the

gain

of

the

antenna.

2500-MANUAL

PAGE

38

SECTION-3