Radio Shack 20-423 Scanner User Manual


 
18
Operation
frequency number, then it automatically
begins scanning again when the
transmission ends on that frequency.
Scanning Options
While scanning you can select from several
options to enhance your scanning enjoy-
ment.
To reverse the scanning direction at any
time, press
8
88
8
or
9
99
9
.
To set the scanner to remain on the
current channel for 2 seconds after the
transmission ends, see “Using the Delay
Function” on Page 20.
To set the scanner to remain on the
current channel even after the
transmission stops, press
MANUAL
at
any time during the transmission so
MAN
appears and
SCAN
disappears. See
“Monitoring a Stored Channel.”
To lock out channels so the scanner
does not stop for a transmission on
those channels, see “Locking Out
Channels and Frequencies” on Page 20.
TURNING CHANNEL
STORAGE BANKS ON AND
OFF
To turn off banks while scanning, press the
bank’s number key until the bar under the
bank’s number disappears. The scanner
does not scan any of the channels within the
banks you have turned off.
To turn on banks while scanning, press the
bank’s number key until a bar appears under
the bank’s number.
Notes:
You cannot turn off all banks. There
must be at least one active bank.
You can manually select any channel in
a bank, even if the bank is turned off.
When you turn on the bank while
scanning, the scanner moves to the
selected bank's first channel and
continues scanning.
MONITORING A STORED
CHANNEL
You can continuously monitor a specific
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 simply want to monitor
that channel.
Follow these steps to manually select a
channel.
1. Press
MANUAL
.
2. Enter the channel number (1–200).
3. Press
MANUAL
again.
CLEARING A STORED
CHANNEL
If you no longer want a frequency stored in a
channel (and you do not want to replace that
frequency with a different one), follow these
steps to clear the stored frequency.
1. Press
MANUAL
to exit the service banks
or to stop scanning.
2. Use the number keys to select the
desired channel number, then press
MANUAL
.
3. Press
PGM
.
PGM
appears.
4. Press
0
, then press
ENTER
. The
frequency number changes to
000.0000
to indicate the channel is
cleared.