Radio Shack 20-521 Scanner User Manual


 
65
Scanner will not
stop while scan-
ning a scan list.
No IDs have
been stored.
Store one or more
IDs (see “Scan
Lists” on Page 48.
The IDs you have
stored are not
active.
Scan another
transmission.
Scanner will not
acquire a data
channel.
SQUELCH
is not
correctly adjusted
for trunk tracking.
Adjust squelch for
trunk tracking.
See “Setting
Squelch for the
Trunk Tracking
Mode” on
Page 41.
The frequency
used for the data
channel is miss-
ing.
Press
SRC
to
search for the
data channel (see
“Storing Trunked
Frequencies” on
Page 41).
Missing replies to
conversations.
The system you
are trying to track
is a Type I sys-
tem, and the
scanner is set to
scan Type II sys-
tems.
Set the scanner to
receive Type I
trunked frequen-
cies. See “Scan-
ning Type I and
Hybrid Trunked
Systems” on
Page 50.
The selected
fleet map is incor-
rect.
Try another preset
fleet map or pro-
gram your own
fleet map (see
“Scanning Type I
and Hybrid
Trunked Sys-
tems” on
Page 50).
Missing replies to
conversations
(continued)
Not all of the
trunk’s frequen-
cies have been
entered.
Enter all of the
trunk’s frequen-
cies (see “Storing
Trunked Frequen-
cies” on Page 41).
PROBLEM
POSSIBLE
CAUSE
REMEDY