58
A General Guide to Scanning
• You cannot use the disconnect tone detect function
if you are programming a trunking frequency or a
fleet map.
To set the scanner to automatically tune to the data
channel once again when it detects a disconnect tone,
press
SVC (E)
.
ˆ
A General Guide to
Scanning
Your scanner’s reception is mainly “line-of-sight.” You
usually cannot hear stations that are beyond the horizon.
GUIDE TO FREQUENCIES
National Weather Frequencies
Birdie Frequencies
Every scanner has birdie frequencies. Birdies are sig-
nals created by the scanner’s internal circuits. These
stray frequencies might interfere with broadcasts on the
same or similar frequencies. If you program one of these
frequencies, you hear only noise on that frequency. If the
interference is not severe, you might be able to turn
SQUELCH
clockwise to cut out the birdie.
This scanner’s known birdie frequencies (in MHz) are:
162.400
162.475
162.525
162.425
162.500
162.550
162.450
41.6000
145.6000
165.3000
171.2500
407.7625
407.8125
413.1750
413.2250
415.0000
435.9250
455.7375
465.6500
485.4625
489.2500
823.8000
899.2375
906.4125
906.5875
926.7000
1290.7000
20-524A.fm Page 58 Tuesday, June 27, 2000 3:41 PM
