Radio Shack 20-164 Scanner User Manual


 
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For EDACS and Motorola (above 406 MHz
range), the scanner monitors the control
channel between each transmission to
identify talk groups. For some Motorola
(under 512 MHz range) and LTR systems,
the scanner uses the subaudible data
sent with each transmission to identify
talk groups.
Trunking Delay
You can set a Talk Group ID delay separately
from the channel delay. When active, the
scanner checks the Talk Group ID for the delay
time when a transmission ends.
To set a Talk Group ID delay:
1. Press FUNC then ./DELAY while you are
programming the Trunk Group ID. “ENTER
key saves. 2.0 seconds” appears.
2. Use or to set ID Delay: None, 0.5, 1.0,
1.5, 2.0, 2.5, 3.0, 3.5, or 4.0 seconds.
3. Press ENT.
Locking Out Talk Group IDs
You can only lock out Talk Group IDs when the
scanner is in the Closed mode.
To lock out Talk Group IDs:
1. Press PGM then TRUNK.
2. Press FUNC, or to move to the desired
bank.
3. Press or to select the ID.
4. Press L/OUT to lock out the ID. “lo” changes
to “LO.”
5. To remove the lockout from a trunking ID,
manually select the ID memory, and press
L/OUT. LO changes to lo.
You cannot clear all lockouts from a talk
group at the same time.
To review locked-out Talk Group IDs:
1. Press PGM then TRUNK.
2. Press FUNC. Then L/OUT. The rst locked
out ID appears. If the ID memory bank has
no locked-out ID, you hear the low beep
tone.
3. Press or to scroll through the list.
4. Press PGM to exit.
Turning Off Sub-Banks
To turn off a sub-bank:
1. Press TRUNK repeatedly to select the
desired sub-bank.
2. Press FUNC then 1 to turn the sub-bank on
if it is off or off if it is on.
To turn off a sub-bank while scanning:
1. When the scanner stops on a transmission,
press FUNC.
2. Press TRUNK. The display indicates which
sub-bank is turned on or off. The active sub-
bank number appears.
3. Press FUNC and the number of the sub-
bank you desire to turn on or off. For
example to turn sub-bank 4 on or off, press
FUNC. Then press 4.
This function activates when the
receiving channel bank is Closed mode.