Roof landing followed by abnormal compass

[Steveo_v1]

I've only had my P3A for a couple of weeks, I thought I'd try and land the drone on the roof of the house (I don't know why I wanted to do this so bad but there we go), it landed fine but to my horror I got an 'Abnormal compass' error and so couldn't take off again, I tried switching to ATTI but the app still wouldn't let me auto take off! The roof is fibreglass and I can't think of any metal that sits underneath it, as soon as I retrieved the drone from the roof (another story alltogether) the compass was fine and didn't even want a calibration again.

Any ideas what could have caused this other than some metal being underneath it, no aerials or sat dishes on the roof either....running latest firmware for both controller + drone and did the standard calibration before flying.. cheers

 

[N017RW]

What ever it is it has to be Ferrous in nature.

Nails???

It does sound unusual. The best would be to try and replicate the error/message again.

 

[Steveo_v1]

In hindsight I should have taken the controller on the roof with me and had a play but I'm not good with heights so it was a grab and dash job without thinking lol. Thanks for reply, was just interested to see if it was me being stupid/missing something rather than assuming it was just a ferromagnetic material underneath.

 

[DRR]

In hindsight I should have taken the controller on the roof with me and had a play but I'm not good with heights so it was a grab and dash job without thinking lol. Thanks for reply, was just interested to see if it was me being stupid/missing something rather than assuming it was just a ferromagnetic material underneath.

I dont know but I thought the craft would have to be level to start up. I was reading thats the trouble taking off from a boat.

 

[Digdat0]

I dont know but I thought the craft would have to be level to start up. I was reading thats the trouble taking off from a boat.

Ive taken off from my roof, no issues. I did try to take off from the roof of my car, that did not work and i got compass errors (presuming from the metal). Landing on my car roof worked fine though.

 

[ksavoie]

Electrical wires in the roof can mess up the compass.

 

[Reed L]

Try it again but don't use auto-take-off