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Radio Shack PRO-93 owner manual Using the Attenuator

Models: PRO-93

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!— accesses the FM Mode, EDACS Trunking System (with 4-digit decimal ID code or 5-digit AFS code)

Note: MO (MOT) and ED modes are not available when the scanner tunes up or down through the frequency ranges in which the trunking operation is not used.

USING THE ATTENUATOR

To reduce interference or noise caused by strong sig- nals, you can reduce the scanner's sensitivity to these signals.

There are two attenuator modes in your scanner. One is normal attenuator mode in which you set the attenuator in each channel or each band/group in the search and tune mode. The other is global mode in which you set the attenuator only once. This setting is applied all the time in every mode.

Press ATT to turn on or off the attenuator while the chan- nel number is indicated or while the scanner is searching through bands/groups. When the attenuator is on, ã ap- pears at the seventh digit in the top line.

When you turn it off, ã changes to "ô". You cannot set the attenuator while the scanner is scanning.

Press FUNC then ATT to set the attenuator to the global mode. #CF98Cýã00ô appears for 2 seconds at the bottom line and W or # appears. W means the attenuator is on and

#means off. Press ATT to turn on or off the attenuator. ã00FE or ã00Vý appears on the bottom line while scan- ning.

Press FUNC then ATT again to turn off the global attenu- ation mode. *FID8Cýã00 is indicated at the bottom line for 2 seconds.

Note: If you turn on the attenuator, the scanner might not receive weak signals.

Special Features

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Radio Shack PRO-93 owner manual Using the Attenuator

Contents

PRO-93 Contents Trunking Operation Special FeaturesGeneral Guide to Frequencies TroubleshootingSpecifications Features Character, 4-Line, Alphanumeric Display shows Features FCC Wants You to Know Pager transmissions Scrambled or encrypted transmissions Scanning LegallyPreparation Power SourcesUsing Batteries Preparation11 Charging Rechargeable Batteries Using Vehicle Battery Power Using AC PowerConnecting an Optional Antenna Connecting the AntennaListening Safely Connecting AN EARPHONE/ HeadphonesTransferring Data to and from Another Scanner or a PC Traffic SafetyConnecting an Extension Speaker Using the Belt ClipLook AT the Keypad About Your ScannerAbout Your Scanner Channel Storage Banks Quick StartUnderstanding Banks Search Banks AM ModeUnderstanding Your Scanners Modes Motorola Mode FM ModeEdacs Mode Open and Closed Modes Operation Turning on the Scanner and Setting SquelchStoring Known Frequencies Into Channels Storing Trunking Frequencies Into Channels Assigning a Text Tag to a Channel Storing Text TagsAssigning a Text Tag to a Bank Assigning a Text Tag to a Group IDButtons Characters Text Input ChartBank Band Finding and Storing Active FrequenciesSearching a Preprogrammed Frequency Range Operation31 Search bank SR0 Marine band Receive mode FM32Operation Search bank SR1 CB band Receive mode AM Group Search bank SR2 Police/Fire band Receive Mode FMSearch bank SR4 Ham band Receive mode FM Search bank SR3 Aircraft Receive mode AMSpecial Notes Listening to a Weather Channel Manually Tuning a FrequencyListening to the Weather Band WX Alert and Beep Tone Confirmation Displaying Weather MessagesCopying a Frequency into a Specified Channel Using Frequency Copy FunctionCopying a Frequency into the Priority Channel Scanning the ChannelsDeleting Frequencies from Channels Turning Channel-Storage Banks Off and OnLocking Out Channels Special FeaturesUsing the Delay Function Locking OUT Channels or FrequenciesReviewing Locked-Out Frequencies Reviewing the Lock-Out ChannelsLocking Out Frequencies Clearing All Locked-Out Frequencies in a Search Bank PriorityClearing a Locked-Out Frequency Special Features Changing the Receive Mode Using the Attenuator Turning the KEY Tone on and OFF Using the Display BacklightUsing the Keylock Cloning the Programmed Data Changing the Display ContrastTrunking Operation Understanding Trunking Programming Trunking Frequencies Setting Squelch for the Trunking ModeÂ8EBýòVò + +ôýòò +0èýEFE Programming Motorola Trunking Systems UHF-Lo Programming Motorola Trunking System 800 MHz Programming Fleet Maps Size Code Storing Talk Group IDs Talk Group IDs8Wdaý&#& ED ?ýDe$ý&& CEJ0ý&// ?ç Talk Group ID Hold 8Wdaý&#& ED ?ýDe$ý& CEJ0ýdedLocking Out Talk Group IDs Turning an ID Sub-Bank On or OffClearing Talk Group IDs Delay Function in ID Indication ModeReviewing Locked-Out Talk Group IDs Clearing All Talk Group IDs in One Bank Open and Closed ModesGeneral Guide to Frequencies Changing the Open/Closed ModeBirdie Frequencies US Weather Frequencies in MHzHam Radio Frequencies UHF High Band MHz VHF Band Guide to the Action BandsTypical Band Usage HF BandPrimary Usage Band AllocationAbbreviations Services High Frequency HF Very High Frequency VHF Aircraft Band-108-137 MHz in 12.5 kHz steps BUS Ultra High Frequency UHF Cm Amateur Band 420-450 MHz in 6.25 kHz steps Conventional Systems Band Locally Assigned in 6.25 kHz steps Frequency Conversion Squelch is not Turn Squelch TroubleshootingInitializing the Scanner RESETTING/INITIALIZING the ScannerResetting the Scanner Care Sensitivity 20 dB S/N Specifications82Specifications Specifications83 Limited One-Year Warranty