PRO-27 20-Channel Programmable Scanner
(200-0507)                 Operation                  Faxback Doc. # 31207

TURNING ON THE SCANNER

Turn VOLUME/OFF clockwise until it clicks to turn on your scanner.  The
scanner automatically scans the 20 channels.

NOTE:  The first time you turn on the scanner, the channels might not have
       any frequencies stored in them, but the scanner will continuously
       scan the empty channels.

SETTING THE VOLUME AND SQUELCH

1.  Press MANUAL to stop the scanning.  The display shows the current
    channel.

2.  Turn SQUELCH fully clockwise.

3.  Turn VOLUME/OFF clockwise to set the scanner's volume about half way.

4.  Turn SQUELCH counterclockwise until you hear a hissing noise.

5.  Adjust VOLUME/OFF to a comfortable level.

6.  Slowly turn SQUELCH clockwise until the hissing noise stops.

Squelch Tips

    If the scanner picks up unwanted or weak transmissions, slightly turn
    SQUELCH clockwise to decrease receiver sensitivity.

    If the scanner does not pick up any transmissions, slightly turn
    SQUELCH counterclockwise to increase receiver sensitivity.

FINDING BIRDIE FREQUENCIES

Birdies are operating frequencies generated and used inside the scanner's
receiver.  These operating frequencies could interfere with broadcasts on
the same frequencies and make them difficult or impossible to receive.

If you store one of these frequencies into a channel, you might hear only
noise when the scanner stops on that frequency.  If the interference is
not severe, you might be able to turn SQUELCH clockwise to cut out the
birdie.

These are the most common birdies to watch for:

    31.2 MHz      145.6 MHz

    41.6 MHz      156.0 MHz

    52.0 MHz

To find your scanner's specific birdies:

1.  Disconnect the antenna and move it away from the scanner.

    NOTE:  Make sure that no other nearby radios or TVs are turned on.

2.  Search every frequency band from its lowest frequency to the highest
    (see "Searching For and Storing Active Frequencies, Faxback
    Doc.  #").

    If searching stops on a frequency (as if the scanner had found a
    signal) but there is no sound, the frequency might be a birdie.

    For future reference, record all the birdies in your particular
    scanner.


(SP 3/12/96)