Toilet bowl effect??

[AmosMoses]

Here’s the skinny!

I did and IMU calibration from a cold start. Put it on the most level surface I could find. My pool table, I did a compass calibration. You know all the usual stuff. Calibrated the TX too, when I’m about 5 to 15 feet off the ground the P3A will rotate in about a 4 foot circle? It will steady out if I climb but it definitely wants to wander when I’m close to the ground.

I usually fly with the VPS off and noticed that if I turn it on it will slow the rotation a bit but doesn’t stop it. I’ve gone to a couple different spots to see if there may be something in my area that’s causing some interference with the compass but with the same results.

I always get at least 17 sats and seen as high as 20 so I’m in a good area for sat reception. Any thoughts from the experts?? J

 

[RoyVa]

Did you do the compass calibration outside? Did you RC sticks center on the calibration? I would recheck those two. Also look at the calibration info in the assistant to see if it calibrated with specifications. If not re do it.

 

[walshoptics]

Did you ever get this issue resolved? I flew my Phantom 3 today for the first time, and I noticed the exact same thing occur. If I flew higher, the issue resolved, but when lower than roughly 10 feet off the ground, it would start to swing in a circle about 4 feet in diameter (it didn't happen every time, only a few times out of maybe 6 when I was at that altitude). I had 20 sats locked at the time.

 

[Bratinov]

Ï got the exact same thing today, P3P... couldn't land.
When I went up`higher the circling stopped.
I was finally able to bring it down low enough to hand catch when I moved 50 meters away from my initial position. (the circling stopped at my new location)

I have flown at this location before without issues (its a bridge).
I calibrated the compass on my first flight today, it was around 300 meters away from the bridge, didn't the second time (maybe that's it?)

 

[BigKenny]

Did you ever get this issue resolved? I flew my Phantom 3 today for the first time, and I noticed the exact same thing occur. If I flew higher, the issue resolved, but when lower than roughly 10 feet off the ground, it would start to swing in a circle about 4 feet in diameter (it didn't happen every time, only a few times out of maybe 6 when I was at that altitude). I had 20 sats locked at the time.

Could be something with the vision positioning system? What kind of surface were you over?