Publicité
Welcome to the world of the new generation of CB radios. The new PRESIDENT
range gives you access to top performance CB equipment. With the use
of up-to-date technology, which guarantees unprecedented quality, your
PRESIDENT JOHNSON III 12/24 V is a new step in personal communication
and is the surest choice for the most demanding of professional CB radio
users. To ensure that you make the most of all its capacities, we advise you
to read carefully this manual before installing and using your PRESIDENT
JOHNSON III 12/24 V.
A) INSTALLATION
1) WHERE AND HOW TO MOUNT YOUR MOBILE CB RADIO
a) You should choose the most appropriate setting from a simple and
practical point of view.
b) Your CB radio should not interfere with the driver or the passengers.
c) Remember to provide for the passing and protection of different wires
(e.g. power, antenna, accessory cabling) so that they do not in any way
interfere with the driving of the vehicle.
d) To install your equipment, use the cradle (1) and the self-tapping screws
[2] provided (drilling diameter 3.2 mm). Take care not to damage the
vehicle's electrical system while drilling the dash board.
e) Choose where to place the microphone support and remember that
the microphone cord must stretch to the driver without interfering with
the controls of the vehicle.
f)
Your mobile unit can be flush-mounted in the dashboard using the
supplied flush-mounting rack. Ask your nearest retailer about mounting
your device.
GENERAL DIAGRAM AND DIN MOUNTING RACK P .3
2) ANTENNA INSTALLATION
a)
Choosing your antenna
-
For CB radios, the longer the antenna, the better its results. Your dealer
will be able to help you with your choice of antenna.
b)
Mobile antenna
-
Must be fixed to the vehicle where there is a maximum of metallic
surface (ground plane), away from windscreen mountings.
-
If you already have a radio-telephone antenna installed, the CB antenna
should be higher than this.
-
There are two types of antenna: pre-regulated which should be used on
a good ground plane (e.g. car roof or lid of the boot), and adjustable
which offer a much larger range and can be used on a smaller ground
plane (see § 5, Adjustment of SWR).
-
For an antenna which must be fixed by drilling, you will need a good
contact between the antenna and the ground plane. To obtain this,
you should lightly scratch the surface where the screw and tightening
star are to be placed.
-
Be careful not to pinch or flatten the coaxial cable (as this runs the risk
of break down and/or short-circuiting).
-
Connect the antenna (B).
c)
Fixed antenna
-
A fixed antenna should be installed in as clear space as possible. If it
is fixed to a mast, it will perhaps be necessary to stay it, according to
the laws in force (you should seek professional advice). All PRESIDENT
antennas and accessories are designed to give maximum efficiency
to each CB radio within the range.
3) POWER CONNECTION
Your PRESIDENT JOHNSON III 12/24 V is protected against an inversion of
polarities. However, before switching it on, you are advised to check all the
connections. Your equipment must be supplied with a continued current
of 12 or 24 volts (A). Today, most cars and lorries are negative earth. You
can check this by making sure that the negative terminal of the battery is
connected either to the engine block or to the chassis. If this is not the case,
you should consult your dealer.
29
Publicité
