Mobile Antenna Installation Guidelines
These mobile antenna installation guidelines are limited to metal body
motor vehicles or vehicles with appropriate ground planes.
Antennas should be installed in the center area of the roof or the trunk
lid taking into account the exposure conditions of backseat passengers
and according to the specic instructions and restrictions in the Radio
Installation Manual along with the requirements of the antenna supplier.
Trunk lid installations are limited to vehicles with clearly defined flat
trunk lids, and in some cases, to specic radio models and antennas.
Approved Accessories
Use only the SMP-approved, supplied accessory or a SMP-approved
replacement accessory. Unauthorized accessories, modifications, or
attachments could damage the radio and may result in non-compliance
with RF Safety Standards.
For a list of SMP-approved accessories, visit the following web site,
which lists approved accessories for your radio model: http://www.smp.
com.cn
Compliance and Control Guidelines and Operating
Instructions for Mobile Two-Way Radios Installed as Fixed
Site Control Stations
If mobile radio equipment is installed at a xed location and operated
as a control station or as a fixed unit, the antenna installation must
comply with the requirements in order to ensure optimal performance
and compliance with the RF energy exposure limits.
The antenna should be mounted outside the building on the roof or
a tower if at all possible.
As with all fixed site antenna installations, it is the responsibility
of the licensee to manage the site in accordance with applicable
regulatory requirements and may require additional compliance
actions such as site survey measurements, signage, and site
access restrictions in order to ensure that exposure limits are not
exceeded.
For additional installation information, see the guidelines for
minimum separation distances provided above in the Compliance
and Control Guidelines and Operating Instructions for Mobile Two-
Way Radios Installed in Vehicles.
Electromagnetic Interference/Compatibility
Nearly every electronic device is susceptible to electromagnetic
interference (EMI) if inadequately shielded, designed, or
otherwise configured for electromagnetic compatibility. It may
be necessary to conduct compatibility testing to determine if
any electronic equipment used in or around vehicles or near
xed site antenna is sensitive to external RF energy or if any
procedures need to be followed to eliminate or mitigate the
potential for interaction between the radio transmitter and the
equipment or device.
NOTE
Facilities
To avoid electromagnetic interference and/or compatibility conflicts,
turn off your radio in any facility where posted notices instruct you to do
so. Hospitals or health care facilities may be using equipment that is
sensitive to external RF energy.
Vehicles
To avoid possible interaction between the radio transmitter and any
vehicle electronic control modules, such as ABS, engine, or transmission
controls, the radio should be installed only by an experienced installer
and the following precautions should be used when installing the radio:
Refer to the manufacturer's instructions or other technical bulletins for
1.
recommendations on radio installation.
Before installing the radio, determine the location of the electronic
2.
control modules and their harnesses in the vehicle.
Route all radio wiring, including the antenna transmission line, as far
3.
away as possible from the electronic control units and associated
wiring.
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