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How can the Mini 2 keep contact with the RC??

photo2be

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Look at this video and explain to me how the RC and the Mini2 can keep in conact when the drone is far away and 90degrees in and over the top of the hill? Is the signal bouncing at the "wall" on the other side of the road and back to the Mini"?

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There could be multiple factors at play here. It’s possible that there is a reflection from the “wall” on the other side of the road but also possible that it is due to the Fresnel Zone effects, or a combination of both. The physical RF signal between the controller and aircraft is a broad swath in the shape of an eclipse such that without direct line of sight some of the signal is still received.
 
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There could be multiple factors at play here. It’s possible that there is a reflection from the “wall” on the other side of the road but also possible that it is due to the Fresnel Zone effects, or a combination of both. The physical RF signal between the controller and aircraft is a broad swath in the shape of an eclipse such that without direct line of sight some of the signal is still received.
Interesting, thanx Camino
 
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Radio frequency transmissions in the frequency range drones use is quite erratic in situations where there are obstacles close or obscuring the line of sight transmission. The root issue is how well that object or set of objects is grounded. Moisture or metal provide good grounding, and reduces or eliminates the signals.

The same trees in spring and summer will have much more interference in the spring and summer when they are full of sap and leaf bearing, then in the fall and winter when the leaves are gone and sap flow reduced.

These rules of Physics are as unchangable as the law of gravity, which also provides some challenges for drones.
 
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