I figured out how to fly it manually even with GPS on. I'd recommend too don't fly on days with wind too. I almost lost a drone due to wind. Mine doesn't do toilet bowl too much.
No GPS, check. Could it be that the drone switches from satellite to satellite to satellite over and over and this is why it goes in circles? If it only communicated with one satellite, this wouldn't happen?
Your GNSS antenna needs to receive signal from constellations. That means multiple satellites are pulsing electromagnetic signals and your antenna needs for example at least to see 8 of them to triangulate and estimate its own position relative to the satellites. If you are not familiar with GNSS i recommend you to check how an antenna is built and how either the signal or the phase is analyzed, you will see it is pretty simple. In my case, the toilet bowl effect was caused by an inflight hard reset of the primary compass. Sometimes magnetic calibration is a mess, and the EKF is trying to deal with wrong informations coming from sensors. In my example huge offsets of the compass conducting to an inflight compass change. Basically the drone was trying to maintain its GNSS position with wrong heading informations
Nice, Thx for this important informations!
I figured out how to fly it manually even with GPS on. I'd recommend too don't fly on days with wind too. I almost lost a drone due to wind. Mine doesn't do toilet bowl too much.
Why does it go into the toilet bowel effect?
No GPS, check. Could it be that the drone switches from satellite to satellite to satellite over and over and this is why it goes in circles?
If it only communicated with one satellite, this wouldn't happen?
Your GNSS antenna needs to receive signal from constellations. That means multiple satellites are pulsing electromagnetic signals and your antenna needs for example at least to see 8 of them to triangulate and estimate its own position relative to the satellites.
If you are not familiar with GNSS i recommend you to check how an antenna is built and how either the signal or the phase is analyzed, you will see it is pretty simple.
In my case, the toilet bowl effect was caused by an inflight hard reset of the primary compass.
Sometimes magnetic calibration is a mess, and the EKF is trying to deal with wrong informations coming from sensors. In my example huge offsets of the compass conducting to an inflight compass change. Basically the drone was trying to maintain its GNSS position with wrong heading informations
Simple don't buy a snaptain . They have kown about this for years and don't care enough to set the GPS and sensors properly in the drone.
Other drones suffer the 'toilet bowl' effect.
Every drone has a toilet bowl effect tbh