Radio-shack PRO-2052 User Manual download pdf (Page 18)

18

OPERATION

TURNING ON THE

SCANNER AND SETTING

SQUELCH

1. Turn

SQUELCH

and

VOLUME

fully

counterclockwise.

2. Turn

VOLUME

back clockwise until

you hear a hissing sound.

3. Turn

SQUELCH

clockwise, then

leave it set to a point just after the

hissing sound stops.

Notes:

• If the scanner does not scan, turn

SQUELCH

further clockwise.

• If the scanner picks up unwanted,

partial, or very weak transmis-

sions, turn

SQUELCH

clockwise to

decrease the scanner’s sensitivity

to these signals. If you want to lis-

ten to a weak or distant station,

turn

SQUELCH

counterclockwise.

• If

SQUELCH

is adjusted so you

always hear a hissing sound, the

scanner will not scan properly.

STORING KNOWN

FREQUENCIES INTO

CHANNELS

Good references for active frequen-

cies are the RadioShack “Police Call

Guide including Fire and Emergency

Services,” “Official Aeronautical Fre-

quency Directory,” and “Maritime Fre-

quency Directory.” We update these

directories every year, so be sure to

get a current copy.

Note:

To store trunking system fre-

quencies, see “Programming Trunked

Frequencies” on Page 32.

Follow these steps to store frequen-

cies into channels.

1. Press

MANUAL

, enter the chan-

nel number (1–1000) where you

want to store a frequency, then

press

MANUAL

again. The chan-

nel number appears.

2. Use the number keys and

•

to

enter the frequency (including the

decimal point) you want to store.

3. Press

E

to store the frequency into

the channel.

Notes:

• If you made a mistake in Step

2,

Error

appears and the

scanner beeps when you press

E

. Simply start again from Step

2.

• Your scanner automatically

rounds the entered frequency to

the nearest valid frequency. For

example, if you enter a fre-

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