harfordhawk
lvl.2
Flight distance : 18668 ft
United States
Offline
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GMG Posted at 2017-2-6 08:01
Up until last week, which was the first time I had my Mavic drop out of GPS for no discernible reason, I felt comfortable flying it. As I mentioned elsewhere, given the unpredictability as to why it lurched into ATTI, I now trust it less than my old Husban, which had no positioning sensors, but also weighed a fraction of the Mavic (so was unlikely to cause any damage if it crashed). I've not flown it since and am awaiting some explanation or firmware update. I had 19 satellites locked in with a 5 bar signal strength. And suddenly that all disappeared. Why?
Yes, I had the same thing happen. Unexpected drop of GPS from full to nothing, and craft seemed somewhat controllable, but erratic. Since I had no reason to expect this and had not practiced, I was fumbling a bit until I got it somewhat stable and 15 secs later got gps back.. Harrowing though, as I was very rusty on the controls in that mode. I still believe there is a hardware or firmware problem associated with the gps. I have used gps for years in rc planes and they don't typically drop out like that. Even when HDOP rises , it should just lower the resolution of the fix, not switch out to atti. |
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