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 an-
tenna 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 adjust-
able 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.
MOUNTING DIAGRAM
3) POWER CONNECTION
Your PRESIDENT JOHNSON II VOX 12/24 V is protected against an inver-
sion 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.
a) Check that the battery is of 12 or 24 volts.
b) Locate the positive and negative terminals of the battery (+ is red
and - is black). Should it be necessary to lengthen the power cable,
you should use the same or a superior type of cable.
c) It is necessary to connect your CB to a permanent (+) and (-). We
advise you to connect the power cable directly to the battery (as the
connection of the CB cable to the wiring of the car-radio or other parts
of the electrical circuit may, in some cases, increase the likelihood of
interference).
d) Connect the red wire (+) to the positive terminal of the battery and
the black (-) wire to the
negative terminal of the
battery.
e) Connect the power cable
to your CB radio.
WARNING: Never replace
the original fuse (2 A) by
one of a different value.
4) BASIC OPERATIONS TO BE CARRIED OUT BEFORE USING YOUR
SET FOR THE FIRST TIME (without transmitting and without
using the «push-to-talk» switch on the microphone)
a) Connect the microphone
b) Check the antenna connections
c) Turn the set on by turning the volume knob VOL (1) clockwise.
d) Turn the squelch knob SQ (2) to minimum (M position). Adjust the
volume to a comfortable level.
e) Go to Channel 20 using either the UP/DN (4).
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