Radio Shack PRO-79 owner manual Connecting an Outdoor Antenna

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Connecting an Outdoor Antenna

Instead of the supplied antenna, you can connect an outdoor base-station or mobile antenna (not supplied) to your scanner using a BNC connector. Your local RadioShack store sells a va- riety of antennas. Choose the one that best meets your needs.

When deciding on a mobile or base-station antenna and its loca- tion, consider these points:

•The antenna should be as high as possible on the vehicle or building.

•The antenna and its cable should be as far as possible from sources of electrical noise, such as appliances or other radios.

•The antenna should be vertical for the best performance.

Always use 50 Ohm coaxial cable, such as RG-58 or RG-8, to connect the base-station or mobile antenna. For lengths over 50 feet, use RG-8 low-loss dielectric coaxial cable. If the antenna cable’s connector does not fit in the scanner’s antenna jack, you might also need a PL-259-to-BNC antenna plug adapter. Your local RadioShack store carries a wide variety of coaxial antenna cable and connectors.

If you choose another antenna, remove the supplied antenna and follow the mounting instructions supplied with the new an- tenna. Route the antenna’s cable to the scanner, then connect the cable to the scanner’s antenna jack.

Cautions:

•Do not run the cable over sharp edges or moving parts that might damage it.

•Do not run the cable next to power cables or other antenna cables.

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Contents PRO-79 Channel VHF/Air/UHF Handheld Scanner Features Page FCC Notice Frequency Types of Transmissions Range MHzScanning Legally Contents Special Features Installing Batteries PreparationUsing AC Power Using Vehicle Battery PowerCharging Rechargeable Batteries Connecting AN Antenna Connecting the Supplied AntennaConnecting an Outdoor Antenna Connecting AN Earphone Headphones Listening SafelyConnecting AN Extension Speaker Traffic SafetyUnderstanding Your Scanner Look AT the KeypadNumber KeysLook AT the Display AIRDLY Understanding Banks Channel Storage BanksService Banks Fire/PoliceAir Amateur RadioMarine Channel Frequency MHz 156.9250 Monitor Memories RESETTING/INITIALIZING the Scanner OperationResetting the Scanner Initializing the ScannerStoring Known Frequencies Into Channels Searching the Service Banks Finding and Storing Active FrequenciesUsing Direct Search Page Using Monitor Memory Listening to a Monitor MemoryMoving a Frequency from a Monitor Memory to a Channel Scanning the Stored Channels Turning CHANNEL-STORAGE Banks OFF and on Monitoring a Stored ChannelClearing a Stored Channel Listening to the Marine BankListening to the Weather Band WX Alert Special Features DelayLocking OUT Channels or Frequencies Locking Out ChannelsLocking Out Frequencies Reviewing Locked-Out FrequenciesRemoving Lockouts From All Frequencies Using Priority Removing Lockouts From All Frequencies in All Service BanksUsing the Display Backlight Using the KEY LockTurning the KEY Tone on and OFF Avoiding Image Frequencies General Guide to Scanning Guide to FrequenciesNational Weather Frequencies Birdie FrequenciesGuide to the Action Bands Typical Band Usage MHzPrimary Usage Abbreviations Services Band AllocationMeter Amateur Band 50-54 MHz Aircraft Band 108-136 MHzGovernment Band 137-144 MHz Meter Amateur Band 144-148 MHzVHF High Band 148-174 MHz Centimeter Amateur Band 420-450 MHzFrequency Conversion Low Band 450-470 MHzTroubleshooting Squelch is notCare and Maintenance Specifications Volts DC, 4 AA Batteries Page RadioShack Division of Tandy CorporationFort Worth, Texas

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