Radio Shack 20-521 owner manual Error

Page 64

PROBLEM

POSSIBLE

CAUSE

REMEDY

	PROBLEM	POSSIBLE	REMEDY
	PROBLEM	CAUSE	REMEDY
		CAUSE


		An antenna is not	Make sure an
		connected or	antenna is con-
		connected incor-	nected to the
		rectly.	scanner.

	Error	Programming	Re-enter the fre-
	appears.	error.	quency correctly,
			including the deci-
			mal point.

	The scanner	Stored frequen-	Avoid storing fre-
	locks on frequen-	cies are the same	quencies listed
	cies that have an	as “birdie” fre-	under “Birdie Fre-
	unclear transmis-	quencies.	quencies” on
	sion.		Page 57 or only
			listen to them
			manually.

	Scanner will not	The transmis-	Scan another
	track a trunked	sion might not	transmission.
	system.	use a system that
		can be tracked by
		your scanner.

		The data fre-	Find the data fre-
		quency is miss-	quency (see
		ing.	“Storing Trunked
			Frequencies” on
			Page 41).

		The system you	Set the scanner to
		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.

Scanner is set to receive Type I trunked frequen- cies, but does not scan them.

The fleet map you have select- ed or entered might be incor- rect.

Check the fleet map and correct it if necessary (see “Scanning Type I and Hybrid Trunked Sys- tems” on Page 50 and “Program- ming a Fleet Map” on Page 51).

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Image 64

Contents PRO-91 150-Channel Handheld Trunking Scanner Features Page Frequency Step Transmission Range MHz KHz FCC Notice Scanning LegallyContents Trunk Tracking Special FeaturesGeneral Guide to Scanning Page Using Internal Batteries Power SourcesPreparation Page Charging Nickel-Cadmium Batteries Using AC Power Using Vehicle Battery Power Plug the adapter’s barrel plug into your scanner’s Connecting the Antenna Connecting an Optional AntennaTraffic Safety Connecting AN EARPHONE/ HeadphonesListening Safely Connecting AN Extension Speaker Attaching the Belt ClipAbout Your Scanner Look AT the Keypad Look AT the Display Page Understanding Banks Service BanksChannel Storage Banks Monitor Memories Turning on the Scanner and Setting Squelch OperationStoring Known Frequencies Into Channels Searching for and Temporarily Storing Active Frequencies Limit SearchDirect Search Service Bank Search Search Skip Memory Listening to the Monitor Memories Moving a Frequency from a Monitor Memory to a ChannelScanning the Stored Channels Manually Selecting a ChannelPage Delay Special FeaturesTurning CHANNEL-STORAGE Banks on and OFF Locking OUT Channels PriorityPage Using the Keylock Using the Display BacklightChanging Search Speeds Normal Search HypersearchTurning the Battery Save Function OFF/ON Turning the KEY Tone OFF/ONSkipping Data Signals Trunk Tracking Types of Trunking SystemsSetting the Scanner to the Trunk Tracking Mode Setting Squelch for the Trunk Tracking Mode Storing Trunked FrequenciesPage Scanning a Trunked Bank Monitoring an Active ID Temporarily Storing an ID into the Monitor ID MemoryUnlocking a Single ID Locking Out IDsUnlocking All IDs Using Trunk Tracking Scan Delay Monitoring IDsChannel Activity Bars Scan Lists Manually Storing IDs into Scan ListsMoving IDs to Scan Lists Deleting a Stored IDScanning the Scan Lists Scanning Type I and Hybrid Trunked SystemsProgramming 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 General Guide to Scanning Guide to FrequenciesNational Weather Frequencies Canadian Weather FrequenciesGuide to the Action Bands Typical Band UsagePrimary Usage VHF BandBand Allocation AbbreviationsVery High Frequency VHF Ultra High Frequency UHF Frequency Conversion Troubleshooting Problem Possible Remedy CauseError Adjust squelch for Resetting the Scanner Care and Maintenance Specifications Power Requirement AA Alkaline Batteries 6.0 VDC Page Page Limited One-Year Warranty RadioShack Division of Tandy Corporation Fort Worth, Texas