Radio Shack 20-423 - Manual (Page 14)

14 Operation
ˆ
Operation
TURNING ON THE
SCANNER/SETTING
VOLUME AND SQUELCH
1. Turn SQUELCH fully counterclockwise
until the indicator points to MIN .
2. Slide POWER to ON to turn on the
scanner.
3. Turn VOLUME clockwise until you hear a
hissing sound.
4. Turn SQUELCH clockwise, just until the
hissing sound stops.
Notes:
• To listen to a weak or distant station,
turn SQUELCH counterclockwise. If
reception is poor, turn SQUELCH
clockwise to cut out weak
transmissions.
• If SQUELCH is adjusted so you always
hear a hissing sound, the scanner
does not scan or search properly.
5. To turn off the scanner when you finish,
slide POWER to OFF .
STORING KNOWN
FREQUENCIES INTO
CHANNELS
Good references for active frequencies are
the RadioShack Police Call, Aeronautical
Frequency Directory, and Maritime
Frequency Directory. We update these
directories every year, so be sure to get a
current copy.
Follow these steps to store frequencies into
channels.
1. Press PGM , enter the channel number
(1–200) where you want to store a
frequency, then press
PGM again. The
channel number appears.
2. Use the number keys and • to enter the
frequency (including the decimal point)
you want to store.
3. Press ENTER 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 ENTER .
Simply start again from Step 2.
• Your scanner automatically rounds
the entered frequency down to the
closest valid frequency. For example,
if you enter a frequency for 151.473,
your scanner accepts it as 151.470.
• If you entered a frequency that is
already stored in another channel,
the scanner beeps three times and
displays the lowest channel number
where the frequency is already
stored, and
-dUPL- then the
frequency flashes. If you want to
store the frequency anyway, press
ENTER again. Press MON/CL to clear
the frequency.
• Press DELAY if you want the scanner
to pause 2 seconds on this channel
after a transmission ends before it
proceeds to the next channel (see
“Using the Delay Function” on
Page 20). The scanner also stores
this setting in the channel.