Service manual

Center-Loaded Telescoping Whip Antenna

(Cat. No. 20-006)

Product Features:

● Receives 25 to 1300MHz

● Transmits on 144 MHz, 220 MHz and 440MHz Ham bands

● Nine sections

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A broadcaster in my area now uses a digital system; why can't I find a digital scanner?

Currently, most radio systems are analog systems; however, some areas have begun using digital radio systems. At this time, all of our scanners

are analog only; we do not currently sell a digital scanner.

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What are birdies?

Birdies are frequencies your scanner uses when it operates. These operating frequencies might interfere with broadcasts on the same

frequencies. If you program one of these frequencies, you will hear only noise on that frequency. If the interference is not severe, you might be

able to turn up the squelch to cut out the birdie. The most common birdies to watch for are listed below.

Birdie Frequencies

31.05 MHz 124.20 MHz

41.40 MHz 134.55 MHz

51.75 MHz 144.90 MHz

113.85 MHz 155.25 MHz

You can use the following procedure to check for birdies in your particular scanner.

1. Remove the antenna.

2. Turn the scanner on and set up a limit search for all bands on the scanner.

3. Be sure that the scanner is separated from possible signal sources such as a PC, other transceivers, etc.

4. Write down the frequencies where the scan stops or detects a continuous noise signal. These are the Birdies.

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Reception Notes

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. During the summer months you may be able to hear stations in the 30-50 MHz range located several hundred or even thousands of

miles away. This is because of summer atmospheric conditions. This type of reception is unpredictable but often very interesting! One very useful

service is the National Weather Service's continuous weather broadcast. These broadcasts contain weather forecasts and data for the areas

around the station, plus bulletins on any threatening weather conditions. These stations use

several frequencies; and in most areas of the

country, you can receive one of these frequencies.

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