26
English
OUTPUT RADIUS PATTERNS
Zum
chassis
Connected
to chassis
Zum
starter
Towards
starter
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 p 27 § 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 a clear a 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 accesso-
ries are designed to give maximum efficiency to each CB radio within the
range.
3) POWER CONNECTION:
Your PRESIDENT HERBERT ASC 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 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.
WARNING:
Lorries generally have two batteries and an electrical installation
of 24 volts, in which case it will be necessary to insert a 24/12 volt converter
(type CV 24/12 PRESIDENT) into the electrical circuit. The following connection
steps should be carried out with the power cable disconnected from the set.
a)
Check that the battery is of 12 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 somecases, 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.
