PRO-10 Scanner
(200-0170)                 Installation               Faxback Doc. # 38503


BASE INSTALLATION

For a base installation, you only need two things.  The most important
is a good antenna.  For superior reception, it is vital that you use
the best antenna you can afford and then mount it properly.  We recommend
a Radio Shack Catalog Number 20-182 for superior UHF reception and a
20-181 for VHF reception.  Use RG 58/U coaxial lead-in cable to assure
maximum transfer of the tiny signals.  Use Motorola adapter plugs as
appropriate (278-208).

The only other thing you need to do is connect the line cord to a source
of 120 volts, 60 Hz AC power.


MOBILE INSTALLATION

Safety and operating convenience are the primary factors to consider when
you install any equipment in a vehicle.  Be sure you can easily reach
the Receiver's controls.  Also, be sure the connecting cables do not
interfere with the operation of the vehicle (brake, accelerator, etc.).

You can mount the Receiver to the underside of the dash or instrument
panel in the vehicle or boat.  Use the universal mounting bracket
provided.  Take care when drilling holes that you do not drill into
existing wires or trim.

The PRO-10 is designed to operate from a negative ground 12 volt DC
source.  Be sure you connect power leads with the correct polarity.
Use the DC Power cable provided.  The other end of these wires can
be connected to an Auto Cigarette Lighter Plug, Catalog Number 274-331;
or you can make the connections directly to the fuse block of the vehicle
or boat.  be sure to observe correct voltage polarity: + to + and - to -.

IMPORTANT:  If your car has been burning out headlamps and other bulbs at
            a rapid rate, have the voltage regulator checked for proper
            output: excessive voltage (more than 16 volts) can cause
            serious damage to your receiver.


MOBILE ANTENNA

For a mobile antenna, we recommend the following: 20-180, a VHF antenna;
20-183, a UHF antenna.

Keep the following points in mind when installing your mobile antenna.

1.  Mount the antenna as high as possible, mounting in the center of the
    roof is the best possible location.

2.  Mount it rigidly, so it will remain vertical while in motion.

3.  Mount as far as possible from the engine compartment; mounting on
    the rear of the car is preferable to mounting in place of the
    AM antenna.


MOBILE NOISE SUPPRESSION

This receiver is very sensitive, and will pick up signals that are
extremely weak.  With this extreme sensitivity, you will find that the
receiver will amplify weak signals, along with any noise that may be
present.

When operating a receiver in a vehicle, you will find that the vehicle
generates noise, and this noise can become very objectionable.  Mobile
operation will not be as quiet as base station operation, but steps
can be taken that will greatly improve the noise situation.


ELECTRICAL SYSTEM

Generally speaking, noise can be generated by any device or connection
that carries electrical current.  Any device that generates a spark
should also be suspected.  Bypass any suspected wire to ground with a
high quality 1 microf coaxial capacitor.

A very common source of noise is the generator or alternator.  This
type of noise will sound like a musical whine, and will also vary
be reduced by connecting a coaxial-type capacitor from the armature
terminal to the metal case.


IGNITION SYSTEM

The ignition system is the most common source of noise.  This noise can
be identified by the fact that its speed varies with the engine speed.
Ignition noise will sound like a series of "popping" sounds, while the
engine is idling, and will speed up to a buzzing sound as engine speed
is increased.

There are a number of things that can be done for this type of noise.

1.  Use radio suppression type ignition wire and resistor spark plugs.

2.  Check high-voltage wiring for leakage, cracks, etc.  Replace any
    old wiring.

3.  In extreme cases, obtain an ignition noise suppression kit-it should
    all ignition wiring.  This will provide maximum noise suppression.

(LB/km-03/21/1997)

Privacy Policy