17
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 will 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 does 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 26.
Follow these steps to store frequen-
cies into channels.
1. Press
MANUAL
, enter the chan-
nel number (1–300) 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.
20-430.fm Page 17 Wednesday, August 4, 1999 1:29 PM
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