User's Manual

103
Troubleshooting Chart
Problem Possible Cause Remedy
Weak signals from distant stations Reposition radio for best
reception
Attenuator in use on weak signals Check performance with and
without attenuator activated, use
setting with best reception
Poor reception
Strong signal overload from nearby
transmitter(s)
Check performance with and
without attenuator activated, use
setting with best reception
AC or DC power supply not properly
connected
Check connection to AC or DC
power source
Scanner will not power on
Dead batteries Replace batteries
Keypad lock is activated Press FUNC LOCK to disable
keypad lock
The keypad does not work
The scanner may need to be reset
or initialized
Follow steps to reset or initialize
the scanner on Page 104
Possible “birdie” frequency
programmed
Tighten squelch, apply attenuator
or lock out the “birdie” frequency
The scanner may need to be reset
or initialized
Follow steps to reset/reinitialize
the scanner on Page 104
No channels programmed, or only
one channel programmed, or all
channels locked out
Ensure that the scanner has
more than one channel
programmed and enabled for
scanning
Scanner will not scan when
SCAN key is pressed
SQUELCH control is not adjusted
properly
Turn SQUELCH control
clockwise until scanning resumes
The digital channel or talkgroup is
not using APCO-25 digital
modulation
The scanner can only receive
APCO-25 C4FM IMBE digital
signals
The digital channel or talkgroup is
encrypted
The scanner will not receive
encrypted traffic
The scanner does not
receive digital
transmissions on digital
frequencies or trunking
systems
The digital channel or talkgroup is
being transmitted from a distant
location
Reposition the scanner or use an
outdoor antenna to improve
reception