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RichardC wrote:As you say, GPS is not really accurate enough in altitude (although as you're not looking for an absolute reading, just relative ones over a few minutes, the situation would not be hopeless). In consequence most, in fact every multicopter altitude control I've come accross, use a barometric altimeter for control - they can be pretty accurate at holding a hover - often to +/- 0.5 metre or better.
Chadfish wrote:Sury I don't really want to get into an RC Quadcopter discussion here, as it's a GoPro Audio forum. I do not use GPS though. I fly totally manually.
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