Radio Shack PRO-28 owner manual Using Standard AC Power

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The POWER jack powers the scanner and disconnects the internal bat- teries. You can use this jack to connect an external power source (AC adapter or DC power cord) regardless of the type of batteries you install.

The CHARGE jack supplies power to operate the scanner and also charges the internal batteries. Use the CHARGE jack only when you in- stall rechargeable nickel-cadmium batteries.

Warning: Never use the CHARGE jack with non-rechargeable batteries. If you try to recharge non-rechargeable batteries, they become very hot and could explode.

USING STANDARD AC POWER

To power the scanner from AC power, you need an AC adapter such as Cat. No. 273-1652 (not supplied).

Warning: Do not use an AC adapter’s polarized plug with an extension cord, receptacle, or other outlet unless the blades can be fully inserted to prevent blade exposure.

Cautions:

•You must use an AC adapter that supplies 12 volts and delivers at least 200 milliamps. Its center tip must be set to positive, and its plug must correctly fit the scanner’s POWER and CHARGE jacks. The recommended adapter meets these specifications. Using an adapter that does not meet these specifications could damage the scanner or the adapter.

•Be sure you connect the AC adapter to the scanner before you connect it to a standard AC outlet. Then disconnect the adapter from the AC outlet before you disconnect it from the scanner.

Note: The scanner receives a 12-volt input at the CHARGE or POWER jack and reduces it to the 6 volts required by the scanner.

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Contents PRO-28 Channel Direct Entry Programmable Scanner Features Fm Page 3 Wednesday, August 4, 1999 150 PM FCC Notice Scanning Legally Contents Troubleshooting Using Internal Batteries Power SourcesPreparation Important Information about the External Power Jacks PowerchargeUsing Standard AC Power Plug the adapter’s power module into a standard AC outlet Using Vehicle Battery Power Charging NICKEL-CADMIUM Batteries Connecting the Antenna Connecting an Optional AntennaTraffic Safety Connecting AN Earphone HeadphonesListening Safely Connecting AN Extension Speaker Attaching the Belt ClipUnderstanding Your Scanner Look AT the KeypadLook AT the Display Fm Page 19 Wednesday, August 4, 1999 150 PM Turning on the Scanner and Setting Squelch OperationStoring Frequencies Searching for and Storing Active Frequencies Band SearchDirect Search Search Skip Memory Listening to the Monitor Memory Moving a Frequency from the Monitor Memory to a ChannelUsing the 2-Second Delay Scanning the Stored ChannelsManually Selecting a Channel Locking Out ChannelsUsing the Keylock Listening to the Weather BandNational Weather Frequencies General Guide to ScanningGuide to Frequencies Birdie FrequenciesTypical Band Usage Guide to the Action BandsPrimary Usage Band Allocation Specified IntervalsMeter Amateur Band- 50-54 MHz VHF High Band 148-174 MHz Cm Amateur Band 420-450 MHz Avoiding Image Frequencies Frequency ConversionTroubleshooting Problem Possible Cause RemedyResetting the Scanner Care and Maintenance Specifications Division of Tandy Corporation Fort Worth, Texas
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