Radio Shack PRO-28 owner manual Important Information about the External Power Jacks, Powercharge

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20-508.fm Page 9 Wednesday, August 4, 1999 1:50 PM

4.Install two batteries in the compartment and two in the cover as indicated by the polarity symbols (+ and –) marked inside.

Cautions:

•Never mix rechargeable and non-rechargeable batteries, or rechargeable batteries of different capacities.

•Use only fresh batteries of the required size and type. Always remove old or weak batteries. Batteries can leak chemicals that destroy electronic circuits.

5.Replace the cover.

If B flashes on the display and the scanner beeps every 15 seconds, im- mediately replace or recharge all four batteries.

IMPORTANT INFORMATION ABOUT THE EXTERNAL POWER JACKS

The scanner has two external power jacks — POWER and CHARGE. It is important that you understand the purpose of each jack before you connect any adapter to the scanner.

POWERCHARGE

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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 Power Sources Using Internal BatteriesPreparation Powercharge Important Information about the External Power JacksUsing Standard AC Power Plug the adapter’s power module into a standard AC outlet Using Vehicle Battery Power Charging NICKEL-CADMIUM Batteries Connecting an Optional Antenna Connecting the AntennaConnecting AN Earphone Headphones Traffic SafetyListening Safely Attaching the Belt Clip Connecting AN Extension SpeakerLook AT the Keypad Understanding Your ScannerLook AT the Display Fm Page 19 Wednesday, August 4, 1999 150 PM Operation Turning on the Scanner and Setting SquelchStoring Frequencies Band Search Searching for and Storing Active FrequenciesDirect Search Search Skip Memory Moving a Frequency from the Monitor Memory to a Channel Listening to the Monitor MemoryScanning the Stored Channels Using the 2-Second DelayLocking Out Channels Manually Selecting a ChannelListening to the Weather Band Using the KeylockGuide to Frequencies General Guide to ScanningNational Weather Frequencies Birdie FrequenciesGuide to the Action Bands Typical Band UsagePrimary Usage Specified Intervals Band AllocationMeter Amateur Band- 50-54 MHz VHF High Band 148-174 MHz Cm Amateur Band 420-450 MHz Frequency Conversion Avoiding Image FrequenciesProblem Possible Cause Remedy TroubleshootingResetting the Scanner Care and Maintenance Specifications Fort Worth, Texas Division of Tandy Corporation