Radio Shack PRO-2050 General Guide to Scanning, Guide to Frequencies, Birdie Frequencies

20-430.fm Page 38 Wednesday, August 4, 1999 1:29 PM

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 hori- zon.

162.400 162.475

162.500 162.550

GUIDE TO FREQUENCIES

National Weather Frequencies

162.525 162.425

162.450

Canadian Weather	Frequencies
161.650	161.775	163.275

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:

171.25 406.7625 407.8125 413.175 413.225

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.

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