Radio Shack PRO-2052 User Manual
18
OPERATION
TURNING ON THE
SCANNER AND SETTING
SQUELCH
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.
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
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
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.
scanner will not scan properly.
STORING KNOWN
FREQUENCIES INTO
CHANNELS
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
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.
get a current copy.
Note: To store trunking system fre-
quencies, see “Programming Trunked
Frequencies” on Page 32.
quencies, see “Programming Trunked
Frequencies” on Page 32.
Follow these steps to store frequen-
cies into channels.
cies into channels.
1. Press
MANUAL
, enter the chan-
nel number (1–1000) where you
want to store a frequency, then
press
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.
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-
the nearest valid frequency. For
example, if you enter a fre-
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