Motorola GM Series Panduan Instalasi - Halaman 14
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1-6
The table below lists the minimum distance for several different ranges of rated radio power.
Rated Power of Vehicle-Installed
7 to 15 Watts
16 to 50 Watts
More than 50 Watts
4.2
Selecting an Antenna Site
1.
Install the vehicle antenna external to the vehicle and in accordance with:
a.
The requirements of the antenna manufacturer/supplier
b.
Instructions in the radio installation manual.
2.
The best mounting location for the antenna is in the center of a large, flat conductive surface.
In almost all vehicles, mounting the antenna in the center of the roof will satisfy these
requirements. A good alternate location is in the center of the trunk lid. If you use the trunk lid,
ensure that the trunk lid is grounded by connecting grounding straps between the trunk lid
and the vehicle chassis.
3.
Ensure the antenna cable can be easily routed to the radio. Ensure that the antenna cable is
routed separately and not in parallel to any other vehicle wiring or mobile radio cable wiring.
4.
Check the antenna location for any electrical interference.
NOTE Any two metal pieces rubbing against each other (such as seat springs, shift levers,
trunk and hood lids, exhaust pipes, etc.) in close proximity to the antenna can cause
severe receiver interference.
5.
If the vehicle is equipped with an electronic anti-lock braking system (ABS) and the antenna
will be trunk mounted, then install the antenna on the side opposite to the braking modulator
box. This minimizes radio interference to the modulator box from the radio.
6.
Motorola offers a glass-mount antenna as an accessory. It is usually mounted on the rear
window. This antenna should be placed as high as possible on the vehicle. Ensure that a
rear-window defogger element does not touch the inductive "button" on the mounting foot of
the antenna.
7.
Make sure the mobile radio antenna is installed at least 30.48 cm (1 foot) away from any other
antenna on the vehicle.
4.3
Antenna Installation Procedure
1.
Mount the antenna according to the instructions provided with the antenna kit. Run the
coaxial cable to the radio mounting location. If necessary, cut off the excess cable and install
the cable connector.
2.
Connect the antenna cable connector to the radio antenna connector on the rear of the radio.
(See Figure 1-4 Connections to the Back of Radio.)
Table 1-2 Rated Power and Distance
Mobile Two-Way Radio
Minimum Distance from
Transmitting Antenna
30.5 Centimetres (1 Foot)
61 Centimetres (2 Feet)
91.5 Centimetres (3 Feet)
INSTALLATION