6.Adjust VOLUME to a comfortable level.
7.Slowly turn SQUELCH clockwise until the hissing noise stops.
Squelch Tips:
•If the scanner picks up unwanted or weak transmis- sions, slightly turn SQUELCH clockwise to decrease receiver sensitivity.
•If the scanner does not pick up any transmissions, slightly turn SQUELCH counterclockwise to increase receiver sensitivity.
FINDING BIRDIE
FREQUENCIES
Birdies are operating frequencies generated and used inside the scan- ner’s receiver. These operating fre- quencies could interfere with broadcasts on the same frequencies and make them difficult or impossible to receive.
These are the most common birdies to watch for:
31.0500 MHz | 134.550 MHz |
127.2500 MHz | 136.050 MHz |
128.1875 MHz | 138.050 MHz |
128.2500 MHz | 140.275 MHz |
129.6875 MHz | 144.900 MHz |
132.0500 MHz | 171.250 MHz |
132.2625 MHz |
|
If you store one of these frequencies into a channel, you might hear only noise when the scanner stops on that frequency. If the interference is not severe, you might be able to turn SQUELCH clockwise to cut out the birdie.
To find your scanner’s specific bird- ies:
1.Disconnect the antenna and move it away from the scanner.
Note: Make sure that no other nearby radios or TVs are turned on.
2.Search every frequency band from its lowest frequency to the highest (see “Searching For and Temporarily Storing Active Fre- quencies”).
If searching stops (as if the scanner had found a signal) but there is no sound, that frequency might be a birdie.
For future reference, record all the birdies in your particular scanner.
19
