Radio Shack 20-521 owner manual

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(trunking channel activity bars) — each represents a received trunking frequency or a data frequency while trunk tracking (see “Channel Activity Bars” on Page 47).

-1-— appears when the weather service band is se- lected.

-2-— appears when the amateur radio service band is selected.

-3-— appears when the marine service band is se- lected.

-4-— appears when the air service band is selected.

-5-— appears when the police service band is select- ed.

P

— appears when a priority channel is selected.

BATT. Lo — blinks when the scanner’s battery is low.

DATA — appears when the data skip function is active.

SCAN — appears when you scan channels.

LIST — appears with numbers (1–5) during trunk tracking. Numbers with a bar under them show which ID scan list banks are turned on for scanning.

SVC — appears during a service search.

SEARCH — appears during a limit search and ID search, and blinks when you monitor IDs (see “Monitor- ing IDs” on Page 46).

PRI — appears when the priority feature is turned on.

HOLD — appears when you manually select a channel or when the scanner is holding during a search.

DLY — appears when you program a delay.

L/O — appears when you manually select a channel or frequency you locked out.

K/L (keylock) — appears when you lock the keypad.

Error — appears when you make an entry error.

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Contents PRO-91 150-Channel Handheld Trunking Scanner Features Page Frequency Step Transmission Range MHz KHz Scanning Legally FCC NoticeContents Special Features Trunk TrackingGeneral Guide to Scanning Page Power Sources Using Internal BatteriesPreparation Page Charging Nickel-Cadmium Batteries Using AC Power Using Vehicle Battery Power Plug the adapter’s barrel plug into your scanner’s Connecting an Optional Antenna Connecting the AntennaConnecting AN EARPHONE/ Headphones Traffic SafetyListening Safely Attaching the Belt Clip Connecting AN Extension SpeakerAbout Your Scanner Look AT the Keypad Look AT the Display Page Service Banks Understanding BanksChannel Storage Banks Monitor Memories Operation Turning on the Scanner and Setting SquelchStoring Known Frequencies Into Channels Limit Search Searching for and Temporarily Storing Active FrequenciesDirect Search Service Bank Search Search Skip Memory Moving a Frequency from a Monitor Memory to a Channel Listening to the Monitor MemoriesManually Selecting a Channel Scanning the Stored ChannelsPage Special Features DelayTurning CHANNEL-STORAGE Banks on and OFF Priority Locking OUT ChannelsPage Using the Display Backlight Using the KeylockChanging Search Speeds Normal Search HypersearchTurning the KEY Tone OFF/ON Turning the Battery Save Function OFF/ONSkipping Data Signals Types of Trunking Systems Trunk TrackingSetting the Scanner to the Trunk Tracking Mode Storing Trunked Frequencies Setting Squelch for the Trunk Tracking ModePage Scanning a Trunked Bank Temporarily Storing an ID into the Monitor ID Memory Monitoring an Active IDLocking Out IDs Unlocking a Single IDUnlocking All IDs Monitoring IDs Using Trunk Tracking Scan DelayChannel Activity Bars Manually Storing IDs into Scan Lists Scan ListsDeleting a Stored ID Moving IDs to Scan ListsScanning Type I and Hybrid Trunked Systems Scanning the Scan ListsProgramming a Fleet Map Size Fleets Subfleets IDs Blocks Used E1P1 E1P2 E1P3 Size E1P4 E1P5 E1P6 Size Selecting a Preset Fleet Map Programming a Hybrid System Guide to Frequencies General Guide to ScanningNational Weather Frequencies Canadian Weather FrequenciesTypical Band Usage Guide to the Action BandsPrimary Usage VHF BandAbbreviations Band AllocationVery High Frequency VHF Ultra High Frequency UHF Frequency Conversion Problem Possible Remedy Cause TroubleshootingError Adjust squelch for Resetting the Scanner Care and Maintenance Specifications Power Requirement AA Alkaline Batteries 6.0 VDC Page Page RadioShack Division of Tandy Corporation Fort Worth, Texas Limited One-Year Warranty