Racelogic VBOX II User Manual page 25

The picture above shows a typical antenna placement for the measurement of Body Slip Angle and Pitch angle.
Antenna A is the primary antenna, from which all calculations are based. If overall slip is to be measured (at the centre
of the vehicle), the primary antenna should be placed rearward of the secondary. Alignment of the antennas is not
completely essential as the Slip Angle Sensor has the ability to calculate any offset. See the Slip Angle Offset Section.
However if you wish to measure Pitch or Roll then the alignment of the antennas must be in line with the vehicle or at
o
90 as accurately as possible.
https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_II_Range/VBOX_II_User_Guide/06_-
_VBOX_20SL_Dual_Antenna_Placement
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