Manuals / Radio Shack / Computer Equipment / Scanner

Radio Shack 20-423 owner manual Nominal

Models: 20-423

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Audio Output Power (10% THD)	0.8 W Nominal
Built-in Speaker	3 inch (77 mm), 8-Ohm, Dynamic Type
Power Requirements	120 V AC, 60 Hz, 8W
Current Drain	300 mA
Operating Temperature	32°F to 110°F
	(0°C to 43°C)
Dimensions (HWD)	21/16 × 81/4 × 67/8 inches
	(52 × 210 × 175 mm)
Weight (without antenna and batteries)	24 oz
	(680 g)
Supplied Accessories	Telescoping Antenna,
	AC Adapter

Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.

Specifications

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Contents

Channel VHF/AIR/UHF Desktop Scanner Introduction Scanning Legally FCC NoticeDual Conversion helps prevent Contents Specifications TroubleshootingGuide to the Action Bands Preparation Power SourcesUsing AC Power Using Vehicle Battery PowerConnecting the Supplied Antenna Connecting AN AntennaConnecting an Outdoor Antenna Look AT the Controls Understanding Your ScannerLook AT the Display Channel Storage Banks Understanding Service BANKS/BANKSAir Service BanksAmateur Radio Channel Frequency MHz Marine45.880 45.900 Fire/PoliceOperation Turning on the SCANNER/SETTING Volume and SquelchStoring Known Frequencies Into Channels Finding and Storing Active Frequencies Searching the Service BanksUsing Direct Search Moving a Frequency from a Monitor Memory to a Channel Using the Monitor MemoryScanning the Stored Channels Listening to a Monitor Memory FrequencyScanning Options Turning Channel Storage Banks on and OFFMonitoring a Stored Channel Clearing a Stored ChannelListening to Weather Band Weather Channel Frequency ChartUsing the Weather Alert Listening to the Marine BankLocking Out Channels Special FeaturesUsing the Delay Function Locking OUT Channels and FrequenciesRemoving All Locked-Out Tags From Frequencies Using PriorityTurning the KEY Tone on and OFF Reviewing Locked-Out FrequenciesBirdie Frequencies Using a Computer to Program the ScannerUnited States Broadcast Band VHF Band Guide to the Action BandsTypical Band Usage Primary UsageBand Allocation Abbreviations ServicesAmateur Band 50-54 MHz Government Band 406-450 MHz Frequency Conversion Avoiding Image FrequenciesRESETTING/INITIALIZING the Scanner TroubleshootingResetting the Scanner Initializing the Scanner CareChannels of Operation SpecificationsNominal Limited One-Year Warranty

0.8 W Nominal

AC Adapter