Digital Trunking – Desktop/Mobile Radio Scanner - Radio Shack

Additional Information
Additional Information
Memory backup
No backup battery required, utilizes non-volatile EEPROM memory.
Power
AC Adapter (Class 2; 12V DC; 600 mA; center tip set to positive).
Specifications are typical; individual units might vary. Specifications and
depictions are subject to change and improvement without notice.
Troubleshooting
Problem Cause Solution
Scanner won’t
power on.
The keypad does
not work.
Scanner will not
scan when SCAN
is pressed
The scanner does
not receive digital
transmission on
digital frequencies
or trunking
systems.
Scanner scans
slowly.
Scanner stops on
noise or silence.
The AC adapter or DC
adapter/cable is not
connected.
The scanner may need
to be initialized.
Possible “birdie”
frequency
programmed
The scanner may
need to be reset or
initialized
No channels
programmed, or
only one channel
programmed, or all
channels locked out
SQUELCH control is
not adjusted properly
The digital channel
or talkgroup is not
using APCO-25 digital
modulation.
The digital channel or
talkgroup is encrypted.
The digital channel
or talkgroup is being
transmitted from a
distant location.
SQUELCH control is
set too high.
Subaudible squelch
mode not set.
Be sure the adapter’s barrel plug is
fully plugged into the DC 13.8V jack.
Follow steps in “Initializing the
Scanner to Factory Defaults” below.
Tighten squelch, apply attenuator or
lock out the “birdie” frequency
Follow steps in “Initializing the
Scanner to Factory Defaults” below.
Ensure that the scanner has more
than one channel programmed and
enabled for scanning
Turn SQUELCH control clockwise
until scanning resumes
The scanner can only receive
APCO-25 C4FM/CQPSK IMBE digital
signals.
The scanner will not receive
encrypted traffic.
Reposition the scanner or use
an outdoor antenna to improve
reception.
Turn SQUELCH control counter
clockwise.
Set the correct subaudible squelch
mode. See “Appendix B: Detailed Menu
Reference: Conv Menu” on page 101.
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