Radio Shack PRO-2052 ユーザーズマニュアル

18

1. Turn 

 and 

 fully

counterclockwise.

2. Turn 

 back clockwise until

you hear a hissing sound.

3. Turn 

 clockwise, then

leave it set to a point just after the
hissing sound stops.

• If the scanner does not scan, turn

 further clockwise.

• If the scanner picks up unwanted,

partial, or very weak transmis-
sions, turn 

 clockwise to

decrease the scanner’s sensitivity
to these signals. If you want to lis-
ten to a weak or distant station,
turn 

 counterclockwise.

• If 

 is adjusted so you

always hear a hissing sound, the
scanner will not scan properly.

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 

, enter the chan-

nel number (1–1000) where you
want to store a frequency, then
press 

 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 

 to store the frequency into

the channel.

• If you made a mistake in Step

2, 

 appears and the

scanner beeps when you press

. 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-

20-432.fm  Page 18  Friday, July 14, 2000  11:30 AM