Radio Shack 20-521 Scanner User Manual


 
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3. Press
MON/CLEAR
and enter the number of the
monitor memory that contains the frequency you
want to store.
4. Press
E
. The scanner stores the frequency into the
selected channel.
SCANNING THE STORED
CHANNELS
To begin scanning channels, press
SCAN
. The scanner
scans through all non-locked channels in the activated
banks. (See “Locking Out Channels” on Page 34 and
“Turning Channel-Storage Banks On and Off” on
Page 33). When the scanner finds a transmission, it
stops on it. When the transmission ends, the scanner
resumes scanning.
Notes:
If you have not stored frequencies into any chan-
nels, the scanner does not scan.
If the scanner picks up unwanted, partial, or very
weak transmissions, turn
SQUELCH
clockwise to
decrease the scanner's sensitivity to these signals.
If you want to listen to a weak or distant station,
turn
SQUELCH
counterclockwise.
•If
SQUELCH
is adjusted so you always hear a hiss-
ing sound, the scanner does not scan properly.
To scan in the trunk tracking mode, see “Scanning
a Trunked Bank” on Page 43.
MANUALLY SELECTING A
CHANNEL
You can continuously monitor a single channel without
scanning. This is useful if you hear an emergency
broadcast on a channel and do not want to miss any
details — even though there might be periods of silence
— or if you want to monitor a specific channel.
Follow these steps to manually select a channel.
1. Press
MAN
.
2. Enter the channel number.
3. Press
MAN
again.