fansf5f0f0fc
lvl.2
Flight distance : 3340 ft
France
Offline
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Hello, you all.
Since my last firmware update, I have a rather important issue with altitude measurement.
I went out today for some tests of the camera and did two flights at a very short distance from my home point (max home distance about 150') and at relatively low altitude (no more than about 50').
If altitude appeared to be well estimated at the begining of both flights, it decreased with time and reached negative values while I was hovering or moving slightly forward or backward at the same level.
When I landed approximatively at my home point (take off), altitude measurement was as low as -156 feet (see the 1st flight log hereunder, 10 min to the end).
The "drift" in altitude measurement begins at roughly 6m 40s and continues till landing, increasing regularly.
Strange enough, the last data after switching off the motors returns to the right value (zero feet).
What can explain these errors and how to correct it ?
I can not fly Litchi missions with such huge errors.
The first flight analysis :
http://www.phantomhelp.com/LogViewer/AMM77FUT5YFX65EJRU2B/
The second one, less regular but also erratic in altitude :
http://www.phantomhelp.com/LogViewer/T3CPPWKBOE6FOL429BTU/
Thank you in advance for your answers...
[Edit : I'd like to add that the Mavic did not climb or went down while the altitude measurement was drifting. It remained absolutely stable, hovering or moving at the same high]
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