PRO-2046 Programmable 100-Channel Mobile Scanner
(200-0149)                 Preparation                Faxback Doc. # 46800

Installing An Antenna

You must install an antenna before you can operate your scanner.  Your
local RadioShack store sells a variety of scanner antennas for both mobile
and base stations.  Choose the one that best meets your needs.

Selecting an Antenna

When deciding on a mobile or base station antenna and its location,
consider these points:

   The antenna should be as high as possible on a vehicle or the house.

   The antenna and its cable should be as far as possible from sources of
   electrical noise (ignition systems, gauges, etc.).

   The antenna should be vertical for the best performance.

Connecting an Antenna

Once you choose an antenna, follow the mounting instructions supplied with
the antenna.  Then route the antenna cable to the scanner.

Note:  To connect the antenna, always use 50-Ohm coaxial cable, such as
       RG-58 or RG-8.  For lengths over 50 feet, use RG-8 low-loss
       dielectric coaxial cable.  Your local RadioShack store carries a
       wide variety of coaxial antenna cable.

CAUTIONS: Do not run the cable over sharp edges or moving parts that might
          damage it.

          Do not run the cable next to power cables or other antenna
          cables.

          Do not run the cable through a vehicle's engine compartment or
          other areas that produce extreme heat.

WARNING:  Use extreme caution when you install or remove an outdoor
          antenna.  If the antenna starts to fall, let it go! It could
          contact overhead power lines. If the antenna touches a power
          line, contact with the antenna, mast, cable or guy wires can
          cause electrocution and death.  Call the power company to
          remove the antenna.  DO NOT attempt to do so yourself.

Mounting The Scanner In Your Vehicle

The most common mounting location for this scanner is under your vehicle's
dashboard.  If you use this scanner in a vehicle, you must mount it
securely to avoid damage to the scanner or vehicle or injury to anyone in
the vehicle during sudden starts or stops.

When you choose a mounting location, be sure:

   You can easily reach the scanner.

   All wires and cables will reach their connection points.

   Wires and cables will not interfere with the vehicle's pedals or other
   moving parts.

   The scanner is not directly in front of any heating vents.

Follow these steps to mount the scanner in your vehicle.

1.  Choose a mounting location, then use the supplied mounting bracket as
    a template to mark the positions for the mounting screw holes.

2.  In the marked positions, drill holes slightly smaller than the
    supplied screws.  Take care not to drill into or damage objects behind
    the mounting surface.

3.  Attach the mounting bracket to the mounting location using the
    supplied screws and lock washers.

4.  Attach the scanner to the mounting bracket using the supplied mounting
    knobs and rubber washers.

5.  Connect the antenna's cable to the ANT jack on the back of the scanner

Note:  If the antenna cable's connector does not fit in the ANT jack, you
       might also need a Motorola-to-BNC antenna plug adapter, such as
       RadioShack Cat. No. 278-117.

Connecting Power from Your Vehicle's Battery

You can power your scanner using either the supplied DC power cord or an
optional DC cigarette lighter power cable such as Cat. No. 270-1534 (not
supplied).

Follow these steps to connect the supplied DC power cord.

1.  Connect the power cord's black wire to your vehicle battery's negative
    (-) terminal or to a metal part of the vehicle's frame that is not
    insulated from the frame by a plastic part.

2.  Connect the power cord's red wire (with in-line fuse) to a source of
    voltage that turns on and off with the ignition switch, such as a
    spare accessory terminal in your vehicle's fuse box.

3.  Insert the power cord's barrel plug into the DC 13.8V jack on the back
    of the scanner.

To connect an optional DC cigarette lighter power cable, insert the barrel
plug into the DC 13.8V jack on the back of the scanner, then plug the
power cable into your vehicle's cigarette lighter socket.

CAUTION:  If you use a DC cigarette lighter power cable with the scanner,
          it must supply 12 volts and deliver at least 1 amp.  Its center
          tip must be set to positive, and its plug must correctly fit the
          DC 13.8V jack on the back of the scanner.  The recommended power
          cable meets these specifications.  Using a power cable that does
          not meet these specifications could seriously damage the scanner
          or the power cable.

Using The Scanner As a Base Station

You can place this scanner on a desk, shelf, or table to use it as a base
station.

Using Standard Power

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

CAUTION:  You must use an AC adapter that supplies 12 or 13.8 volts DC
          power and delivers at least 500 milliamps.  Its center tip must
          be set to positive, and its plug must properly fit the scanner's
          DC 13.8V jack.  The recommended AC adapter meets these
          specifications.  Using an adapter that does not meet these
          specifications could damage the scanner or the adapter.

1.  Connect the adapter's blue-tipped barrel plug to the adapter's cord
    and set the barrel plug's tip to positive.

2.  Insert the adapter's blue-tipped barrel plug into the DC 13.8V jack on
    the back of the scanner.

3.  Plug the adapter into a standard AC outlet.

4.  Connect the antenna's cable to the ANT jack on the back of the scanner

Note:  If the antenna cable's connector does not fit in the ANT jack, you
       might also need a Motorola-to-BNC antenna plug adapter, such as
       Cat. No. 278-117.

Connecting an External Speaker

You can connect an optional external speaker with a 1/8-inch plug to the
scanner.  Use an 8-Ohm external speaker capable of handling 3 watts of
power (such as Cat. No. 21-549).

Insert the speaker's plug into the EXT SP. jack on the back of the scanner

Note:  Plugging in an external speaker disconnects the scanner's internal
       speaker.

(BR/eb 3/31/98)