Radio Shack PRO-90 ユーザーズマニュアル

39

Many trunked systems have a period of 2 or more sec-
onds between a query and a reply. You can program a
5-second delay to hold on an ID for 5 seconds to wait for
a reply. The scanner continues to monitor the frequency
for 5 seconds after the transmission stops before resum-
ing scanning.

Press 

 to turn trunk tracking scan delay on or off.

 appears when trunk tracking scan delay is set.

Note: If you consistently miss responses even with trunk
tracking scan delay set, you might need to change the
default system type or the fleet map you are using. See
“Scanning Type I and Hybrid Trunked Systems” on
Page 44.

You can use your scanner’s display to monitor the fre-
quencies in a trunked system for activity. You cannot
hear conversations in this mode, but this is an excellent
way to determine which talk groups are the most active.
To set the scanner to monitor IDs, hold down 

 until

the scanner beeps twice. 

 flashes, and all active

talk group IDs appear in succession. To stop monitoring
IDs, press 

 again.

Note:  When you monitor IDs, locked-out IDs also ap-
pear.

20-520.fm  Page 39  Wednesday, August 4, 1999  3:06 PM