Radio Shack PRO-2050 owner manual Connecting AN Earphone Headphones, Listening Safely

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Note: Connecting an external speaker disconnects the scanner’s internal speaker.

CONNECTING AN

EARPHONE/

HEADPHONES

For private listening, you can connect an earphone or headphones with a 1/8- inch plug (such as Cat. No. 33-175 or 20-210) to the jack on the front of the scanner. This automatically dis- connects the internal speaker.

Listening Safely

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

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

•Set VOLUME to the lowest setting before you begin listening. After you begin listening, adjust VOL- UME to a comfortable level.

•Once you set 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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Contents Cat. No Features Fm Page 3 Wednesday, August 4, 1999 129 PM Your PRO-2050 scanner can receive all of these bands FCC NoticeScanning Legally Contents Resetting the Scanner Preparation Connecting AN AntennaConnecting the Supplied Antenna Connecting an Outdoor AntennaUsing AC Power Connecting PowerUsing Your Vehicle’s Battery Power Connecting AN Extension SpeakerListening Safely Connecting AN Earphone HeadphonesLook AT the Front Panel Understanding Your ScannerScans through the stored channels AIR Look AT the DisplayScan Channel Storage Banks Service BanksUnderstanding Banks Understanding TrunkingSquelch Channels Turning on Storing Known Scanner and SettingOperation Searching Service Banks Limit Search Clearing a Frequency from a Channel Scanning the Stored ChannelsManually Selecting a Channel Turning CHANNEL- Storage Banks on and OFF Special FeaturesDelay Locking Out Frequencies Locking OUT Channels FrequenciesLocking Out Channels Trunk Tracking Skipping Data SignalsPriority Types of Trunking Systems Programming Trunked Frequencies Setting Squelch for the Trunk Tracking ModeScanning a Trunked Bank Locking Out IDs Monitoring an Active IDUnlocking All IDs Using Trunk Tracking Scan DelayUnlocking a Single ID Monitoring IDs Channel Activity IndicatorsManually Storing IDs into Scan Lists Scan ListsAutomatically Storing an ID in a Scan List Location Scanning the Scan ListsStoring IDs into Scan Lists While Searching Deleting a Stored IDScanning Type I and Hybrid Trunked Systems E1P1 E1P2 Block Size Code Block Size Code Programming a Fleet Map Selecting a Preset Fleet MapUSr Programming a Hybrid SystemFrequencies General Guide to ScanningGuide to Frequencies National Weather FrequenciesTypical Band Usage Guide to the Action BandsPrimary Usage Band AllocationHAM Meter Amateur Band 50-54 MHz Centimeter Amateur Band 420-450 MHz Conventional Systems Band Locally Assigned Frequency Conversion Troubleshooting Trunked Frequencies on Fm Page 48 Wednesday, August 4, 1999 129 PM Resetting the Scanner Care and Maintenance Specifications Fm Page 52 Wednesday, August 4, 1999 129 PM Fm Page 53 Wednesday, August 4, 1999 129 PM Fm Page 54 Wednesday, August 4, 1999 129 PM Fm Page 55 Wednesday, August 4, 1999 129 PM RadioShack