Motorola MTM5400 User Manual
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MTM5400 Mobile Terminal Installation Manual
INSTALLATION
Vehicle Antenna Installation
Mobile Radio Operation and EME Exposure
To assure optimal radio performance and that human exposure to radio frequency electromagnetic
energy is within the guidelines referenced in this document, transmit
energy is within the guidelines referenced in this document, transmit
only when people inside and
outside the vehicle are at least the minimum distance away from a properly installed, externally-
mounted antenna.The table below lists the minimum distance for several different ranges of rated
radio power.
mounted antenna.The table below lists the minimum distance for several different ranges of rated
radio power.
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.
The requirements of the vehicle manufacturer
2.
The best mounting location for the antenna is in the centre of a large, flat conductive surface.
In almost all vehicles, mounting the antenna in the centre of the roof will satisfy these
requirements. A good alternate location is in the centre 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.
requirements. A good alternate location is in the centre 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 according to vehicle manufacturer
requirements.
5.
Make sure the mobile radio antenna is installed at least 30 centimeters (1 foot) away from any
other antenna on the vehicle.
Table 18 Rated Power and Distance
Mobile Radio Rated Power
(see Note below)
Minimum Lateral Distance
from Vehicle Body
Less than 7 Watts
20 Centimetres (8 inches)
7 to 15 Watts
30 Centimetres (1 Foot)
16 to 39 Watts
60 Centimetres (2 Feet)
40 to 110 Watts
90 Centimetres (3 Feet)
If you are not sure of the rated power of your radio,
contact your Motorola representative or dealer and supply
the radio model number found on the radio model label.
contact your Motorola representative or dealer and supply
the radio model number found on the radio model label.
If you cannot determine the rated power out, then assure
90 cm (3 feet) separation from the body of the vehicle.
90 cm (3 feet) separation from the body of the vehicle.
It is recommended to mount the antenna outside the
vehicle. Also make sure your power cable is not placed
with the antenna in parallel. Interference can cause radio
to hang.
vehicle. Also make sure your power cable is not placed
with the antenna in parallel. Interference can cause radio
to hang.