How accurate is VBOX when measuring velocity?
The velocity accuracy of all VBOX’s is 0.1 km/h averaged over 4 samples. This applies to the 2D course over ground velocity.
The vertical velocity is harder to resolve and as such has an accuracy of 0.2 km/h averaged over 4 samples.
These accuracies are for a VBOX used in open environments with the antenna placed to avoid multipath signal noise.