Radio Shack Pro-71 owner manual Guide to the Action Bands, Birdie Frequencies, Typical Band Usage

Birdie Frequencies

Every scanner has birdie frequencies. Birdies are signals created in- side the scanner’s receiver. These operating frequencies might inter- fere with broadcasts on the same frequencies. If you program one of these frequencies, 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.

The birdie frequency on this unit to watch for is 146.65 MHz.

To find the birdies on your receiver, begin by disconnecting the anten- na and moving it away from the receiver. Make sure that no other near- by radio or TV sets are turned on near the receiver. Use the search function and scan every frequency range from its lowest frequency to the highest. 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.

GUIDE TO THE ACTION BANDS

Typical Band Usage

HF Band (3.00–30.0 MHz)

10-Meter Amateur	29.00–29.70 MHz
High Range	29.70–29.90 MHz
VHF Band (30.00–300.0 MHz)
Low Range	30.00–50.00 MHz
6-Meter Amateur	50.00–54.00 MHz
Aircraft	108.00–136.97 MHz
U.S. Government	137.00–144.00 MHz
2-Meter Amateur	144.00–148.00 MHz
High Range	148.00–174.00 MHz
UHF Band (300.00 MHz–3.0 GHz)
U. S. Government	406.00–450.00 MHz
0.6-Meter Amateur	420.00–450.00 MHz
Low Range	450.00–470.00 MHz
FM-TV Audio Broadcast, Wide Band	470.00–512.00 MHz

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