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FILE: IM101 service manual.doc 2006.01.10
E-TECH Co., Ltd 23/26
5. Antenna Installation
5-1 Antenna Installation and Compliance with Radio Frequency(RF) Energy Safety Standards
[IMPORTANT NOTE]
To assure optimum performance and compliance with RF Energy Safety standards, this
antenna installation guidelines and Instructions are limited to metal-body vehicles with
appropriate ground planes and take into account the potential exposure of backseat
passengers and bystanders outside the vehicle.
[NOTE]
For mobile radios with rated power of 7 watts or less, the only installation restrictions are
to use only E-tech 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 5.2 below.
5-2 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. Roof top – For optimum performance and compliance with RF Energy Safety standards, mount
the antenna in the center area of the roof.
3. Trunk lid – On some vehicles with clearly defined, flat trunk lids, the antenna of some radio
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 an antenna on the trunk lid.
•
Be sure that the distance from the antenna location on the trunk lid will be at least 60cm (24
inches) from the front surface of the rear seat-back to assure 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.
If these conditions can not be satisfied, then mount the antenna on the roof top !
4. Mounting restrictions for certain radio models
For more than 40 Watt VHF models
, the 1/4 wave antenna should be mounted
only in the
