Radio Shack PRO-2052 - Manual (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-
20-432.fm Page 18 Friday, July 14, 2000 11:30 AM