GNSS antennas require a ground plane to operate correctly. This helps reduce unwanted reflections of the GNSS signal
caused by nearby objects. Usually, the metal roof of a vehicle will perform this function, however, if a test requires
the antenna to be placed either off the vehicle or on a vehicle that does not have a metallic roof, you must use a special
ground plane antenna. This has an internal ground plane and can operate perfectly without the need to be mounted on a
metal surface. Ground plane antennas are available from your Racelogic distributor.
Power
The VBOX Speed Sensor can be powered from a wide range of voltage sources including a Vehicle Cigar adapter, a
Racelogic Li-ion battery pack or other sources provided by the user. The maximum operating voltage input must not
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02_-_Speed_Sensor_GPS_Antenna
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