Radio Shack 20-521 owner manual Adjust squelch for

Page 65

PROBLEM

POSSIBLE

REMEDY

CAUSE

 

 

 

 

 

 

 

 

 

 

 

Scanner will not

No IDs have

Store one or more

stop while scan-

been stored.

IDs (see “Scan

ning a scan list.

 

Lists” on Page 48.

 

 

 

 

The IDs you have

Scan another

 

stored are not

transmission.

 

active.

 

 

 

 

Scanner will not

SQUELCH is not

Adjust squelch for

acquire a data

correctly adjusted

trunk tracking.

channel.

for trunk tracking.

See “Setting

 

 

Squelch for the

 

 

Trunk Tracking

 

 

Mode” on

 

 

Page 41.

 

 

 

 

The frequency

Press SRC to

 

used for the data

search for the

 

channel is miss-

data channel (see

 

ing.

“Storing Trunked

 

 

Frequencies” on

 

 

Page 41).

 

 

 

Missing replies to

The system you

Set the scanner to

conversations.

are trying to track

receive Type I

 

is a Type I sys-

trunked frequen-

 

tem, and the

cies. See “Scan-

 

scanner is set to

ning Type I and

 

scan Type II sys-

Hybrid Trunked

 

tems.

Systems” on

 

 

Page 50.

 

 

 

 

The selected

Try another preset

 

fleet map is incor-

fleet map or pro-

 

rect.

gram your own

 

 

fleet map (see

 

 

“Scanning Type I

 

 

and Hybrid

 

 

Trunked Sys-

 

 

tems” on

 

 

Page 50).

 

 

 

Missing replies to

Not all of the

Enter all of the

conversations

trunk’s frequen-

trunk’s frequen-

(continued)

cies have been

cies (see “Storing

 

entered.

Trunked Frequen-

 

 

cies” on Page 41).

 

 

 

65

Image 65
Contents PRO-91 150-Channel Handheld Trunking Scanner Features Page Frequency Step Transmission Range MHz KHz Scanning Legally FCC NoticeContents General Guide to Scanning Special FeaturesTrunk Tracking Page Preparation Power SourcesUsing Internal Batteries 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 AntennaListening Safely Connecting AN EARPHONE/ HeadphonesTraffic Safety Attaching the Belt Clip Connecting AN Extension SpeakerAbout Your Scanner Look AT the Keypad Look AT the Display Page Channel Storage Banks Service BanksUnderstanding 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 Turning CHANNEL-STORAGE Banks on and OFF Special FeaturesDelay 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 IDUnlocking All IDs Locking Out IDsUnlocking a Single ID 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