Radio Shack PRO-91 - Manual (Page 57)

57
A GENERAL GUIDE TO SCANNING
Reception of the frequencies covered by your scanner
is mainly “line-of-sight.” That means you usually cannot
hear stations that are beyond the horizon.
GUIDE TO FREQUENCIES
National Weather Frequencies
Canadian Weather Frequencies
Note: These frequencies are not preprogrammed in the
weather service bank but can be manually programmed
into a channel.
Birdie Frequencies
Every scanner has birdie frequencies. Birdies are sig-
nals created inside the scanner’s receiver. These oper-
ating frequencies might interfere with broadcasts on the
same frequencies. If you program one of these frequen-
cies, you hear only noise on that frequency. If the inter-
ference is not severe, you might be able to turn
SQUELCH clockwise to cut out the birdie.
This scanner’s birdie frequencies (in MHz) are:
162.400 162.475 162.525
162.425 162.500 162.550
162.450
161.650 161.775 163.275
31.2000 41.6000 52.0000 138.7100
138.7150 145.6000 148.6200 165.3000
171.2500 406.2250 407.7625 407.8125
413.1750 413.2250 416.1375 426.0375
426.0500 435.9500 455.7625 455.8625
455.7750 465.6750 475.5875 485.4875
489.2500 495.4000 505.3000 505.3125
813.4000 820.9500 822.3625 899.2375
20-521.fm Page 57 Wednesday, August 4, 1999 3:32 PM