Geebax
Captain
Australia
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Danimal0017 Posted at 2018-9-19 18:02
I am having the same issue, Through the app my hight typically is fine. Though last week I had issues of this keeping proper height on a sloped yard. I was taking surveying shots for a client at different heights and just from flying 25ft in 5-foot increments, The measurements were off by 10ft (+or-). Just wildly inconsistent. I was required to land and take off to recalibrate the "home" altitude for every photo. On top of this, my altitude embedded in my files are all negative...... (see photo attached)
How can this be? After takeoff, the photos all show this very odd pattern of height.
It is hard to tell from your explanation, but you said you were working in a sloping yard. If you took off at the top of the slope, then flew down the slope, maintaining your height above the ground, then yes, the displayed height will be negative, as you will be below the launch point. The launch point is always zero.
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