Take the below picture as an example. The plane is circling clockwise (top view, see from the sky).
When the plane reaches A point, the tracker limits its limit. It is not able to track the plane in
clockwise direction anymore. So the tracker will rotate 360degrees, counterclockwise to point B
to continue tracking.
4. Downlink
The mini Crossbow AAT needs a downlink to get the information of the tracking plane.
Usually this is the most difficult part to get your system to work. Because you have to merge
several devices came from different manufactories.
We may extend this chapter in the future. Currently we discuss only VBI solution and dataradio
solution(Based on MAVLink).
1. VBI
VBI stands for "vertical blanking interval". It's a term of the analog video signal technology.
Many MFD products use VBI to carry flying information from the plane to the tracker.
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