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

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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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Contents
PRO-71 VHF/UHF/Air Handheld Scanner Features Frequency MHz Frequency Range MHz TransmissionScanning Legally FCC NoticeWe encourage responsible, legal scanner use Contents Care and Maintenance Specifications TroubleshootingGeneral Guide to Scanning Installing Batteries Power SourcesPreparation Important Information about the External Power Jacks Using Standard AC Power Using Vehicle Battery Power Charging NICKEL-CADMIUM Batteries Connecting an Optional Antenna Connecting the AntennaTraffic Safety Connecting AN Earphone HeadphonesListening Safely Using the Belt Clip Connecting AN Extension SpeakerLook AT the Keypad Understanding Your ScannerLook AT the Display Page CHANNEL-STORAGE Banks Banks and MemoriesMonitor Memories Operation Turning on the Scanner and Setting SquelchStoring Frequencies Press E WX to store the frequency Searching for and Temporarily Storing Active FrequenciesLimit Search Direct Search Moving a Frequency from a Monitor Memory to a Channel Listening to Monitor MemoriesManually Selecting a Channel Using the Keylock Special FeaturesLocking OUT Channels Search Skip Memory Turning CHANNEL-STORAGE Banks on and OFFPriority Using the Display BacklightListening to the Weather Band Ham Radio Frequencies General Guide to ScanningGuide to Frequencies Weather FrequenciesBirdie Frequencies Guide to the Action BandsTypical Band Usage UHF Band Band AllocationPrimary Usage VHF BandHigh Frequency HF Hi 3 MHz-30 MHz AbbreviationsLow Band 29.7-50 MHz in 5 kHz steps Very High Frequency VHF 30 MHz-300 MHzGovernment Band 406-450 MHz Channel Frequency Conversion Avoiding Image FrequenciesProblem Possible Cause Remedy TroubleshootingResetting the Scanner Care and Maintenance Specifications 94 oz Page Limited One-Year Warranty
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