Connecting AN Extension Speaker | Radio Shack PRO-79 guide

Traffic Safety

•Do not use an earphone/headphones with your scanner when operating a motor vehicle or riding a bicycle in or near traffic. Doing so can create a traffic hazard and could be ille- gal in some areas.

•If you use an earphone/headphones with your scanner while riding a bicycle, be very careful. Do not listen to a continu- ous transmission. Even though some earphones/head- phones let you hear some outside sounds when listening at normal volume levels, they still can present a traffic hazard.

CONNECTING AN EXTENSION SPEAKER

In a noisy area, an amplified extension speaker (available at your local RadioShack store) positioned in the right place, might provide more comfortable listening.

Plug the speaker cable’s 1/8-inch (3.5-mm) plug into your scan- ner’s jack.

Note: Connecting an external speaker disconnects the scan- ner’s internal speaker.

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Radio Shack PRO-79 owner manual Connecting AN Extension Speaker, Traffic Safety

Contents

PRO-79 Channel VHF/Air/UHF Handheld Scanner Features Page FCC Notice Frequency Types of Transmissions Range MHz Scanning Legally Contents Special Features Installing Batteries Preparation Using AC Power Using Vehicle Battery Power Charging Rechargeable Batteries Connecting AN Antenna Connecting the Supplied Antenna Connecting an Outdoor Antenna Connecting AN Earphone Headphones Listening Safely Connecting AN Extension Speaker Traffic Safety Understanding Your Scanner Look AT the Keypad Number Keys Look AT the Display AIR DLY Understanding Banks Channel Storage Banks Service Banks Fire/Police Marine AirAmateur Radio Channel Frequency MHz 156.9250 Monitor Memories RESETTING/INITIALIZING the Scanner Operation Resetting the Scanner Initializing the Scanner Storing Known Frequencies Into Channels Searching the Service Banks Finding and Storing Active Frequencies Using Direct Search Page Moving a Frequency from a Monitor Memory to a Channel Using Monitor MemoryListening to a Monitor Memory Scanning the Stored Channels Turning CHANNEL-STORAGE Banks OFF and on Monitoring a Stored Channel Listening to the Weather Band Clearing a Stored ChannelListening to the Marine Bank WX Alert Locking OUT Channels or Frequencies Special FeaturesDelay Locking Out Channels Removing Lockouts From All Frequencies Locking Out FrequenciesReviewing Locked-Out Frequencies Using Priority Removing Lockouts From All Frequencies in All Service Banks Turning the KEY Tone on and OFF Using the Display BacklightUsing the KEY Lock Avoiding Image Frequencies National Weather Frequencies General Guide to ScanningGuide to Frequencies Birdie Frequencies Primary Usage Guide to the Action BandsTypical Band Usage MHz Abbreviations Services Band Allocation Government Band 137-144 MHz Meter Amateur Band 50-54 MHzAircraft Band 108-136 MHz Meter Amateur Band 144-148 MHz VHF High Band 148-174 MHz Centimeter Amateur Band 420-450 MHz Frequency Conversion Low Band 450-470 MHz Troubleshooting Squelch is not Care and Maintenance Specifications Volts DC, 4 AA Batteries Page Fort Worth, Texas RadioShackDivision of Tandy Corporation