Resetting the Scanner | Radio Shack 20-521 instruction

	PROBLEM	POSSIBLE	REMEDY
	PROBLEM	CAUSE	REMEDY
		CAUSE


	Channel activity	The transmis-	Scan for another
	bars are flashing	sion might be a	transmission.
	but no sound is	private or tele-
	heard.	phone intercon-
		nect call. The
		scanner does not
		scan these types
		of transmissions.

		The ID shown is	Wait for the ID to
		not active.	become active, or
			scan another
			transmission.

RESETTING THE SCANNER

If the scanner’s display locks up or does not work prop- erly, you might need to reset the scanner.

Caution: This procedure clears all the information you have stored into the scanner. Before you reset the scanner, try turning it off and on to see if it begins work- ing properly. Reset the scanner only when you are sure it is not working properly.

1.Turn off the scanner.

2.While you hold down the 2 and 9 keys, turn on the scanner. CLEAR flashes for about 8 seconds as the scanner clears its memory.

Note: Do not turn off the scanner until CLEAR stops flashing. Otherwise, the scanner might not clear its memory properly.

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Radio Shack 20-521 owner manual Resetting the Scanner

Contents

PRO-91 150-Channel Handheld Trunking Scanner Features Page Frequency Step Transmission Range MHz KHz FCC Notice Scanning Legally Contents 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 the Antenna Connecting an Optional Antenna Connecting AN EARPHONE/ Headphones Traffic SafetyListening Safely Connecting AN Extension Speaker Attaching the Belt Clip About Your Scanner Look AT the Keypad Look AT the Display Page Service Banks Understanding BanksChannel Storage Banks Monitor Memories Turning on the Scanner and Setting Squelch Operation Storing Known Frequencies Into Channels Searching for and Temporarily Storing Active Frequencies Limit Search Direct Search Service Bank Search Search Skip Memory Listening to the Monitor Memories Moving a Frequency from a Monitor Memory to a Channel Scanning the Stored Channels Manually Selecting a ChannelPage Special Features DelayTurning CHANNEL-STORAGE Banks on and OFF Locking OUT Channels PriorityPage Changing Search Speeds Using the KeylockUsing the Display Backlight Normal Search Hypersearch Turning the Battery Save Function OFF/ON Turning the KEY Tone OFF/ON Skipping Data Signals Trunk Tracking Types of Trunking Systems Setting 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 Memory Locking Out IDs Unlocking a Single IDUnlocking All IDs Using Trunk Tracking Scan Delay Monitoring IDs Channel Activity Bars Scan Lists Manually Storing IDs into Scan Lists Moving IDs to Scan Lists Deleting a Stored ID Scanning the Scan Lists Scanning Type I and Hybrid Trunked Systems Programming 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 National Weather Frequencies General Guide to ScanningGuide to Frequencies Canadian Weather Frequencies Primary Usage Guide to the Action BandsTypical Band Usage VHF Band Band Allocation Abbreviations Very High Frequency VHF Ultra High Frequency UHF Frequency Conversion Troubleshooting Problem Possible Remedy Cause Error 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