Radio Shack 20-501 manual Basics

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RECHARGEABLE inside the battery compartment to RECHARGEABLE, install the batteries in the scanner, and connect an external AC or DC adapter to the scanner's DC 6V jack (see “using AC power” on Page 10 or “using vehicle battery power” on

Page 11).

Warning: Do not connect either the AC or DC adapter to the scanner if non-rechargeable batteries (such as alkaline batteries) are installed in the scan- ner and ALKALINE/RECHARGEABLE is set to RECHARGEABLE, or if you are unsure of the switch's position. Non-rechargeable batteries will get hot and can even explode if you try to recharge them.

Before you use Ni-Cd or Ni-MH batteries for the first time, charge them for 14 hours to bring them to a full charge.

Discharged batteries take about 14 hours to fully recharge.

Notes:

•Ni-Cd batteries last longer and deliver more power if you occasionally let them fully discharge. To do this, simply use the scanner

until it beeps every 15 seconds and flashes.

•To prevent damage to Ni-Cd batteries, never charge them in an area where the temperature is above 113°F (40°C) or below 40°F (4°C).

The Basics

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Contents Read this user’s guide completely before using your scanner Contents Storing frequencies into channels during service search FCC wants you to know Powering your scanner Basics Using rechargeable batteries Basics Basics Using AC power Using vehicle battery power Basics Connecting an optional antenna Setting up your scannerConnecting the antenna Connecting an earphone/headphone Listening safelyTraffic safety Connecting an extension speakerAttaching the belt clip About your scanner Look at the keypad SCAN/SRCH SVC PGM Look at the display Basics Understanding banks service banks Channel storage banksStoring known frequencies into channels Turning on the scanner and setting squelchOperating your scanner Beyond the Basics Beyond the Basics Service search Searching for and temporarily storing active frequenciesStoring frequencies into channels during service search Scanning the stored channels Manually selecting a channelSignal stalker Setting the signal stalker options Beyond the Basics Beyond the Basics Using signal stalker Skywarn About SkywarnBeyond the Basics WX alert Turning on the weather alert feature Chain searchChain search mode Chain search hold mode Paging system eliminatorProgram band select mode Direct entry search Direct entry search hold mode Beyond the Basics Search skip memory Beyond the Basics Delay Turning channel-storage banks on and off Locking out channelsPriority Using keylock Wired programming Using the display/key backlight Frequently asked questions My scanner isn’t working at all. How do I turn it on?Beyond the Basics Flashes on the display. What is it? Error appears on the display. What does it mean? ALKALINE/RECHARGEABLE Switch Lets you GlossaryIndex Belt ClipEarphone Connecting Extension Speaker Setting Options Warranty Accessories Beyond the Basics 20-501 07A04