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Standard Configurations: Antenna Installation
2.4
Antenna Installation
IMPORTANT NOTE: To assure optimum performance and compliance with RF Energy Safety
NOTE: For mobile radios with rated power of 7 watts or less, the only installation restrictions are to
use only Motorola approved antennas and install the antenna externally on metal body
vehicles. For mobile radios with rated power greater than 7 Watts, always adhere to all the
guidelines and restrictions in section 2.4.1 below.
2.4.1
Selecting an Antenna Site/Location on a Metal Body Vehicle
1. External installation – Check the requirements of the antenna supplier and install the
vehicle antenna external to a metal body vehicle in accordance with those requirements.
2. Mounting restrictions for certain radio models
Motorola recommends that mobile antennas be located as follows:
Standard metal passenger vehicles
NOTE: Minimum lateral distance for people in an uncontrolled environment from the body of a vehicle
with transmitting antenna should be 5.0 feet and recommended for trunk lid installation for
optimum performance.
3. Ensure that the antenna cable can be easily routed to the radio. Route the antenna cable as
far away as possible from any vehicle electronic control units and associated 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. Trunk lid - On some vehicles with clearly defined, flat trunk lids, the antennas of some models
(see restrictions below) can also be mounted on the center area of the trunk lid. For vehicles
without clearly defined, flat trunk lids (such as hatchback autos, sport utility vehicles, and
pick-up trucks), mount the antenna in the center area of the roof.
Before installing antenna on the trunk lid, be sure that the distance from the antenna location on the
trunk lid will be at least 85 cm (33 inches) from the front surface of the rear seat-back to ensure
compliance with RF energy Safety standards.
Ensure that the trunk lid is grounded by connecting grounding straps between the trunk lid and the
vehicle chassis.
NOTE: If these conditions cannot be satisfied, then mount the antenna on the roof top.
October, 2007
standards, these antenna installation guidelines and instructions are
limited to metal-body vehicles with appropriate ground planes and take
into account the potential exposure of back seat passengers and
bystanders outside the vehicle.
Center trunk lid
2-13
6880309U11
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