Dirty Bird
Core User of DJI
Flight distance : 41442379 ft
United States
Offline
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The altitude listed beside the H is your approximate height above the point from which you lifted off. It is relative to that point only & is an approximation based on the barometric sensor in the drone. It is NOT your altitude above the ground. If you lift off to 3' on the lip of the Grand Canyon then fly over the rim, the drone will still show your altitude as 3'.
The yellow/red proximity warning you see as you approach the ground is determined by the IR sensors on the bottom of the drone. This is a close approximation of your distance from the ground or an object (roof, trees, car, etc.) directly beneath the drone. The drone will USUALLY prevent you from flying into the ground, though it can still happen if the terrain is steep or rugged. |
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