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
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