Radio Shack PRO-2050 - Manual (Page 38)

38
Reception of the frequencies covered
by your scanner is mainly “line-of-
sight.” That means you usually cannot
hear stations that are beyond the hori-
zon. GUIDE TO
FREQUENCIES
National Weather
Frequencies
Canadian Weather Frequencies
Note: These three frequencies are not
pre-programmed in the weather ser-
vice bank but can be manually pro-
grammed into a channel.
Birdie Frequencies
Every scanner has birdie frequencies.
Birdies are signals created inside the
scanner’s receiver. These operating
frequencies might interfere with
broadcasts on the same frequencies.
If you program one of these frequen-
cies, you hear only noise on that fre-
quency. If the interference is not
severe, you might be able to turn
SQUELCH clockwise to cut out the
birdie. This scanner’s birdie frequen-
cies (in MHz) are:
To find the birdies in your individual
scanner, begin by disconnecting the
antenna and moving it away from the
scanner. Make sure that no other near-
by radio or TV sets are turned on near
the scanner. Use the search function
and search every frequency range
from its lowest frequency to the high-
est. Occasionally, the searching will
stop as if it had found a signal, often
without any sound. That is a birdie.
Make a list of all the birdies in your
scanner for future reference.
162.400 162.475 162.525 162.425
162.500 162.550 162.450
161.650 161.775 163.275
171.25 406.7625 407.8125 413.175 413.225
A GENERAL GUIDE TO SCANNING
20-430.fm Page 38 Wednesday, August 4, 1999 1:29 PM