Motorola M990 User Manual page 82

Gsm wireless phone
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If the vehicle incorporates a 'heat reflective' or 'comfort'
windscreen, it is recommended that the antenna be installed
elsewhere in the vehicle, e.g., the rear windshield.
In order to maximize the GPS antenna performance, please
obey the following guidelines:
1. Make sure the antenna location is well exposed to the
open sky.
2. For best performance, the antenna should be attached to
a metal ground plane.
3. Keep distance from any nearby metal object which may
obstruct the transmission – windscreen coating (French
cars), metal stickers, etc.
4. Keep distance of at least 30 cm (12 inches) from any
other transmitting antenna.
5. In case of a vertical angle window, it is not recommended
to mount the GPS antenna to the dashboard facing
upwards. This may affect its exposure to the open sky.
Note: In certain French car models (such as the Renault
Megane and the Renault Kangoo), a radiation filter is fitted in
the windscreen; In this case, install the GPS antenna on the
vehicle metal roof.
74 – Installation Guide

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