Hi Guys,

I went flying today and it was fairly windy. There were 2 other people on my channel. I range checked the Nexstar and everything was working fine. Took it off and while I was flying the engine revved up and down and the plane went up sporatically 2 time for at least 5 seconds and it seemed like it was flying on its own. Now this had happened once before and there was again 2 other people with my frequency and they had their radios in the impound area. I range checked before on each flight and everything worked fine.
I don't know if a big gust of wind hit me today or there's something wrong with my radio. I checked the plane over and there seems to be nothing wrong.
On both occasions, the plane went back to normal flying condition and I was able to bring the plane in.

What's going on?