Radio Shack ADV0801 Owner's Manual page 55

ADV0801 Owner's Manual Draft
Scanner will not
power on
The keypad does not The scanner may need to be
work
Scanner will not
scan when SCAN
key is pressed
The scanner does
not receive digital
transmissions on
digital frequencies
Initializing Global Parameters to Factory Defaults
If your scanner does not appear to be functioning properly, you can reset the global radio
parameters to their factory state without losing any of your programmed data. Any custom
changes you have made to the radio's global parameters will be lost.
NOTE: This procedure preserves the information you stored in the scanner's working memory,
while resetting all global radio parameters to factory defaults. V-Scanner memory is not affected
by this operation.
Attenuator in use on weak signals
Strong signal overload from
nearby transmitter(s)
Loose or defective antenna
Incorrect modulation mode selected Ensure that the proper modulation
AC or DC power supply not
properly connected
Dead batteries
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
or trunking systems 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 an outdoor antenna to
location
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Check performance with and
without attenuator activated, use
setting with best reception
Check performance with and
without attenuator activated, use
setting with best reception
Inspect antenna and connectors and
correct any problems found
mode is selected for the type of
system that is being monitored
Check connection to AC or DC power
source
Replace or recharge batteries
Follow steps below to initialize the
scanner
Tighten squelch, apply attenuator or
lock out the "birdie" frequency
Follow steps to reset/reinitialize the
scanner following this table
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
improve reception