PRO-20 Receiver
(200-0101)           Control Location and Function    Faxback Doc. # 39313


OFF-VOLUME is the power switch and volume control.  When not in use, rotate
this control to the left to turn it off.

SQUELCH control is to eliminate annoying background noise between signal
transmissions.  When properly set, SQUELCH will keep the PRO-20 silent
until a signal comes in on the channel(s) you are listening to - then, the
Squelch circuit will "open" and you'll hear the signal.

SCAN/MANUAL Switch determines the function of the scanning feature.  In
SCAN position, each channel will be scanned automatically.  In the center
(stop) position, the PRO-20 will not scan, but will remain tuned to the
channel indicated by the LED.  To advance the receiver to the next channel
in sequence, press to the MANUAL position momentarily; each time you do so,
the receiver will advance one channel.

Channel Lock-Out Switches let you activate the four channels 
individually.  When a switch is up (next to LED), that channel will be 
scanned for messages in either automatic or manual mode; when switch is
down, that channel will be skipped ("locked out") by the scanner.  When a
channel is vacant (no crystal plugged in) or when you don't want to monitor
that channel, leave its switch down.  Otherwise leave the switches in the
"up" position.

LED Channel Indicators show which channel is currently being scanned or
monitored.  Each channel indicator will light up for an instant as it is
scanned; if there is a message on that channel, the LED will remain lit
until message is over and scanning resumes.  Locked-out channels will not
be scanned; therefore their indicators will not light up.

EARPHONE jack is for plugging in the earphone.  Use it for private 
listening or in areas where background noise is excessive (in factories, at
the scene of an accident or fire, in a vehicle, etc.).  Plugging in the
Earphone disconnects the PRO-20'S internal speaker.

Antenna jack is for connecting an antenna to the PRO-20.  You can use
either the telescopic antenna or flexible antenna provided.

A Belt Clip is provided so you can attach the PRO-20 to your belt or other
convenient place.

Battery Compartment holds the internal power source (4 type AA batteries).

Crystal Compartment contains crystals selected for operation.

External Power Jack lets you connect an external source of 6 volts DC
(negative ground) for operation without batteries.

To recharge Nickel Cadmium batteries in the receiver, simply plug an
external 6 volt DC power source into the CHG JACK.  To fully charge 
Ni-Cads, leave them on charge for 10-18 hours.

Note:  The Recharge (CHG) jack is to be used only when Nickel Cadmium
       batteries are installed in the receiver.  Also, do not attempt to
       operate the unit while recharging Ni-Cads.

(km-05/06/1997)

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