Realistic PRO-16A manual Skipper Circuit, Types of Signals Youllbe Able to Monitor

Delay circuit is switchable-press DE LAY in to activate the Delay function; leave out to remove this delay. The Priority channel has a separate built-in Delay circuit which is not switchable-so when PRIORITY is activated, you know for sure you won't miss any repli es on that channel.

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SKIPPER CIRCUIT:

Your scanner has a built-in skipper circuit which is fully automatic and can not be disabled. It works in both the SCAN and MANUAL modes of operation. This feature causes the unit to skip over a locked out channel(s) so that there is no possibility of the Receiver stopping on a locked out channel(s).

ACCESSORIES

Your PR0-16Acan be powered either from 120 volts AC or from any source of 12 volts DC, negative ground. Radio Shack sells a special portable power pack with 8 D cell batteries, battery holder and adapter plug for a cigarette lighter socket. It'sa handy accessory for portable or vehicle operation. For more permanent 12 volt instal- lations, attach the DC power cable to the connector on the back. Then, attach other end of the wires to a + and - source of 12 volts (e.g. at the fuse block on a vehicle). Be sure to observe correct

FREQUENCY COVERAGE

For maximum sensitivity, the channel frequencies you choose should be within 3 MHz of 40 MHz on the VHF band (that is, in the spread of 37 to 43 MHz), 4 MHz of 153 MHz on the VHF band (from 149 to

157MHz) . For the UHF band, stay within 15 MHz of 480 MHz (from

465to 495 MHz). The PR0-16A will function very adequately down to 30 and up to 50 MH z. from 148 to 174, and from 450 to 512 MHz, but with reduced sensitivity. The superior reception spread of 6, 8 or 30 MHz (±3, 4 or 15 MHz) can be moved up or down in this band of frequencies by special realignment of the front end circuitry of the PR0-16A (which should be attempted only by qualified Electronics Service Technicians who have adequately calibrated, precision test equipment).

TYPES OF SIGNALS YOU'LLBE ABLE TO MONITOR

Your community is alive with action-actionwhich is constantly being reported on the air waves. And your PR0-16A will automatically scan the air waves to bring you that action-yourpolice force at work, a fire truck on a mission, Sheriff's department, State police, the National Weather Service, Ham Radio operators, highway and other emergency-type services, some industrial services, some transportation services (taxi, trucks, railroad), plus some Government services. Lots of things are going on that most of us just are never aware of. But, with the right frequency crystal in your PR0-16A, you can monitor such exciting signa ls. You'llhave to do a little investigating in your com-

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polarity.

munity to find out what services are active and on what frequencies. You will find one of our books to be very interesting and helpful in

Apair of headphones can be a very useful accessory. In areas where a high noise level is present (in a factory, at the scene of a fire or accident, etc.), or when you want to listen privately, use headphones.

-Your Radio Shack store has a couple of very fine selections for your PR0-16A. Just plug them into the rear panel Speaker/Headphone jack.

If you want to listen to the Receiver from a remote position, or just want to use an external speaker, connect it to the Speaker/Headphone jack. Again, your Radio Shack store has some speakers specifically made for th is purpose.

You can record off-the-air using a tape recorder connected to the TAPE OUT jack on the rear.

this area: REALISTIC GUIDE TO POLICE, FIRE AND AIRCRAFT RADIO.

What to listen for and where? That is a little difficult for a specific

answer. Each area of the country can and will use different channels. All we can do is give you some general pointers and then let you take it from there.

Find out if there is a local club which monitors these frequencies. Often a local electronics repair shop that does work on the equipment can give you the channel frequencies used by local radio services. A volunteer police or fire employee can also be a good source of this information.

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