Troubleshooting, Squelch is not | Radio Shack PRO-79 specification

TROUBLESHOOTING

If your scanner is not working as it should, these suggestions might help you eliminate the problem. If the scanner still does not operate properly, take it to your local RadioShack store for assistance.

	PROBLEM	POSSIBLE CAUSE	REMEDY


	Scanner is	The AC or DC	Be sure the adapter’s barrel
	totally inopera-	adapter is not con-	plug is fully inserted into the
	tive.	nected.	PWR jack.

		The batteries are	Replace the batteries with
		dead.	fresh ones, or recharge the
			rechargeable batteries.

	Poor or no	An antenna is not	Make sure an antenna is
	reception	connected or is	properly connected to the
		connected incor-	scanner.
		rectly.

		Programmed fre-	Avoid programming fre-
		quencies are the	quencies listed under
		same as “birdie”	“Birdie Frequencies” on
		frequencies.	Page 41 or only listen to
			them manually.

	Keypad does	Keylock is turned	Turn off the keylock.
	not work.	on.

		The scanner might	Turn the scanner off then on
		need to be reset or	again, or reset/initialize the
		initialized.	scanner (see “Resetting/Ini-
			tializing the Scanner” on
			Page 25.

	Scanner is on	SQUELCH is not	Adjust SQUELCH clock-
	but will not	correctly adjusted.	wise.
	scan.
	scan.	Only one channel is	Store frequencies into more
		Only one channel is	Store frequencies into more
		(or no channels	than one channel.
		are) stored.

	During scan-	Programmed fre-	Avoid programming fre-
	ning, the scan-	quencies are the	quencies listed under
	ner locks on	same as “birdie”	“Birdie Frequencies” on
	frequencies	frequencies.	Page 41, or only listen to
	that have an		them manually.
	unclear trans-
	mission.

47

Image 47

Radio Shack PRO-79 owner manual Troubleshooting, Squelch is not

Contents

PRO-79 Channel VHF/Air/UHF Handheld Scanner Features Page Frequency Types of Transmissions Range MHz FCC Notice Scanning Legally Contents Special Features Preparation Installing Batteries Using Vehicle Battery Power Using AC Power Charging Rechargeable Batteries Connecting the Supplied Antenna Connecting AN Antenna Connecting an Outdoor Antenna Listening Safely Connecting AN Earphone Headphones Traffic Safety Connecting AN Extension Speaker Look AT the Keypad Understanding Your Scanner Keys Number AIR Look AT the Display DLY Channel Storage Banks Understanding Banks Fire/Police Service Banks Marine AirAmateur Radio Channel Frequency MHz 156.9250 Monitor Memories Operation RESETTING/INITIALIZING the Scanner Initializing the Scanner Resetting the Scanner Storing Known Frequencies Into Channels Finding and Storing Active Frequencies Searching the Service Banks Using Direct Search Page Moving a Frequency from a Monitor Memory to a Channel Using Monitor MemoryListening to a Monitor Memory Scanning the Stored Channels Monitoring a Stored Channel Turning CHANNEL-STORAGE Banks OFF and on Listening to the Weather Band Clearing a Stored ChannelListening to the Marine Bank WX Alert Locking Out Channels Special FeaturesDelay Locking OUT Channels or Frequencies Removing Lockouts From All Frequencies Locking Out FrequenciesReviewing Locked-Out Frequencies Removing Lockouts From All Frequencies in All Service Banks Using Priority Turning the KEY Tone on and OFF Using the Display BacklightUsing the KEY Lock Avoiding Image Frequencies Birdie Frequencies General Guide to ScanningGuide to Frequencies National Weather Frequencies Primary Usage Guide to the Action BandsTypical Band Usage MHz Band Allocation Abbreviations Services Meter Amateur Band 144-148 MHz Meter Amateur Band 50-54 MHzAircraft Band 108-136 MHz Government Band 137-144 MHz Centimeter Amateur Band 420-450 MHz VHF High Band 148-174 MHz Low Band 450-470 MHz Frequency Conversion Squelch is not Troubleshooting Care and Maintenance Specifications Volts DC, 4 AA Batteries Page Fort Worth, Texas RadioShackDivision of Tandy Corporation