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Radio Shack PRO-79 owner manual Connecting An Earphone Headphones, Listening Safely

Models: PRO-79

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CONNECTING AN EARPHONE/

Warning: Use extreme caution when you install or remove an outdoor antenna. If the antenna starts to fall, let it go! It could contact overhead power lines. If the antenna touches a power line, contact with the antenna, mast, cable, or guy wires can cause electrocution and death. Call the power company to re- move the antenna. DO NOT attempt to do so yourself.

CONNECTING AN EARPHONE/

HEADPHONES

For private listening, you can connect an earphone or head- phones with a 1/8-inch (3.5-mm) plug to the jack on the top of the scanner. (Your local RadioShack store carries a wide selec- tion of earphones and headphones). Connecting an earphone or headphones automatically disconnects the internal speaker.

Listening Safely

To protect your hearing, follow these guidelines when you use an earphone or headphones.

•Set the volume to the lowest setting before you begin listen- ing. After you begin listening, adjust the volume to a com- fortable level.

•Do not listen at extremely high volume levels. Extended high-volume listening can lead to permanent hearing loss.

•Once you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing.

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Radio Shack PRO-79 owner manual Connecting An Earphone Headphones, Listening Safely

Contents

PRO-79 200-Channel VHF/Air/UHF Handheld Scanner Owner’s Manualillus - show front of product FEATURES Page FCC NOTICE SCANNING LEGALLY CONTENTS Troubleshooting Special FeaturesCare and Maintenance SpecificationsPREPARATION INSTALLING BATTERIESCautions USING VEHICLE BATTERY POWER USING AC POWERCautions Cautions CHARGING RECHARGEABLE BATTERIESConnecting the Supplied Antenna CONNECTING AN ANTENNACautions Connecting an Outdoor AntennaListening Safely CONNECTING AN EARPHONE HEADPHONESTraffic Safety CONNECTING AN EXTENSION SPEAKERA LOOK AT THE KEYPAD UNDERSTANDING YOUR SCANNERKeys NumberALErt A LOOK AT THE DISPLAYBANK C-ErrPage UNDERSTANDING BANKS WirEdChannel Storage Banks SCANFire/Police Service BanksMarine Amateur RadioGroup Frequency Range MHzFrequency MHz ChannelFrequency MHz Channel156.9250 MONITOR MEMORIES OPERATION RESETTING/INITIALIZING THE SCANNERTURNING ON THE SCANNER/SETTING VOLUME AND SQUELCH Initializing the Scanner Resetting the ScannerSTORING KNOWN FREQUENCIES INTO CHANNELS FINDING AND STORING ACTIVE FREQUENCIES Searching the Service BanksUsing Direct Search To pause the search, press or . To resume search- ing, hold down or Listening to a Monitor Memory USING MONITOR MEMORYMoving a Frequency from a Monitor Memory to a Channel SCANNING THE STORED CHANNELS MONITORING A STORED CHANNEL TURNING CHANNEL-STORAGE BANKS OFF AND ONLISTENING TO THE MARINE BANK CLEARING A STORED CHANNELLISTENING TO THE WEATHER BAND WX Alert DELAY SPECIAL FEATURESLOCKING OUT CHANNELS OR FREQUENCIES Locking Out ChannelsReviewing Locked-Out Frequencies Locking Out FrequenciesRemoving Lockouts From All Frequencies Removing Lockouts From All Frequencies in All Service Banks USING PRIORITYUSING THE KEY LOCK USING THE DISPLAY BACKLIGHTTURNING THE KEY TONE ON AND OFF AVOIDING IMAGE FREQUENCIES GUIDE TO FREQUENCIES A GENERAL GUIDE TO SCANNINGNational Weather Frequencies Birdie FrequenciesTypical Band Usage MHz GUIDE TO THE ACTION BANDSPrimary Usage VHF BandBAND ALLOCATION ServicesAbbreviations VERY HIGH FREQUENCY VHF - 30 MHz- 300 MHz HIGH FREQUENCY HF - 3 MHz- 30 MHz 10-Meter Amateur Band 28.0-29.7 MHzVHF Low Band 29.7-50 MHz -in 5 kHz steps 6-Meter Amateur Band 50-54 MHzULTRA HIGH FREQUENCY UHF - 300 MHz- 3 GHz VHF High Band 148-174 MHzU. S. Government Band 406-420 MHz 70-Centimeter Amateur Band 420-450 MHzLow Band 450-470 MHz FREQUENCY CONVERSIONSQUELCH is not TROUBLESHOOTINGCARE AND MAINTENANCE Audio Output Power 10% THD SPECIFICATIONSIF Interference Ratio 10.7 MHz 6 Volts DC, 4 AA Batteries Page A Division of Tandy Corporation RadioShackFort Worth, Texas Limited One-Year Warranty