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VBOX Micro
GPS Antenna
The GPS antenna supplied with the VBOX Micro is a 3.5V active antenna. For the best possible
signal quality, it is important to maintain a clean connection between the antenna and the VBOX
Micro. Before fixing the antenna to the VBOX Micro, ensure that there are no dust particles in either
connector. Replacement antennae are available by contacting your VBOX Micro distributor.
The antenna is a magnetic mounting type for quick and simple mounting to the vehicle roof. For
optimum GPS signal reception, make sure that the antenna is fitted to the highest point of the vehicle
away from any obstructions that may block satellite reception. The GPS antenna works best with a
metal ground plane underneath (a metallic vehicle roof is perfect for this).
Please also note that when using any GPS equipment, a clear sky view is important. Objects in the
surrounding area such as tall buildings or trees can block the GPS signal causing a reduction in the
number of satellites being tracked, or introducing reflected signals that can decrease the accuracy of
the system. Note that clouds and other atmospheric conditions do not affect the VBOX Micro's
performance.
GPS antennas require a ground plane to operate correctly. This helps to reduce unwanted reflections of the GPS signal caused by nearby objects, and
usually the metal roof of a vehicle performs this function. However, if a test requires an antenna to be placed either off the vehicle, or on a vehicle that does
not have a metallic roof, a special ground plane antenna must be used. This has an internal ground plane and can operate perfectly without the need for
mounting on a metal surface. Ground plane antennas are available from your VBOX distributor (part number RLVBACS065).
RLVBACS065 – Ground plane antenna
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