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RF Antenna Installation
Attention! Ensure the
antenna is located at least
20 cm (8 inches) away
from all vehicle occupants.
Attention! To avoid audio
interference, do not thread
the antenna cable dose to
the microphone cable.
Use original antenna plug
and clamping tools only.
Test antenna and cable
performance using a
VSWR meter.
The preferred position for on-glass antenna is either on the
upper right side or upper left side of the windscreen, opposite
from the driver's seat. Should another cellular device already
be installed in the vehicle, the antennas should be located at
a distance of at least 30 cm (12 inches) from the other.
Note: Certain car models incorporate a 'heat reflective' or
'comfort' windscreen. In this case, please attach the antenna
to the side or rear windshield only.
GPS Antenna
The GPS antenna should meet the following requirements:
Electrical Requirements
Impedance: 50Ω
GPS Module Noise Figure: 2dB max
Overall Gain: 26dB (GPS Antenna Element Gain: 0dBi min)
Polarization: Right Hand Circular
Operating Voltage: 3V
Current (Typical): 14mA
VSWR<2.0:1 @ 1575.4MHz +/- 2MHz
72 – Installation Guide
Figure 16: RF antenna
installation.
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