Radio Shack 20-423 Scanner User Manual


 
20
Special Features
ˆ
Special Features
USING THE DELAY
FUNCTION
Many agencies use a two-way radio system
that has a period of several seconds
between a query and a reply. To avoid
missing a reply, you can program a 2–
second delay into any channel or frequency.
When your scanner stops on any channel or
frequency with a programmed delay,
DLY
appears and the scanner continues to
monitor that frequency for an additional 2
seconds after the transmission stops before
resuming scanning or searching.
You can program a 2 second delay in any of
these ways:
If the scanner is scanning and stops on
an active channel, quickly press
DELAY
before it continues scanning.
If the desired channel is not selected,
manually select the channel, then press
DELAY
.
If the scanner is searching, press
DELAY
.
DLY
appears and the scanner
automatically adds a 2-second delay to
every transmission it stops on in that
band.
To turn off the delay, press
DELAY
while the
scanner is monitoring the channel or
frequency.
DLY
disappears.
LOCKING OUT CHANNELS
AND FREQUENCIES
You can increase the scanning or search
speed by locking out individual channels or
frequencies that have a continuous
transmission, such as a weather channel
(see the “Weather Channel Frequency
Chart” on Page 19) or birdie frequency (see
“Birdie Frequencies” on Page 22).
Locking Out Channels
To lock out a channel while scanning, press
and release
L/O (L/O RVW)
when the scanner
stops on the channel.
To lock out a channel manually, select the
channel then press and release
L/O (L/O
RVW)
until
L/O
appears.
To unlock a channel, manually select that
channel again, then press
L/O (L/O RVW)
.
L/
O
disappears from the display.
Notes
:
The scanner automatically locks out
empty channels.
You can still manually tune to locked-out
channels.
Locking Out Frequencies
To lock out a frequency during a service
bank, or a direct search, press
L/O (L/O RVW)
when the scanner stops on the frequency.
The scanner locks out the frequency then
continues searching. You can lock out
frequencies in both direct search and service
bank searches.
Note
: You can lock out as many as 50
frequencies during a search. If you try to lock
out more,
FLo
-FULL
appears (see
“Reviewing Locked-Out Frequencies” on
Page 21and “Removing All Locked-Out Tags
From Frequencies” on Page 21).