I'm running out of ideas on this problem and so far nothing seems to work. Here's whats happening;
I get quick glitches at each end of the runway at the same places. This also happens up to 150 to 200 ft straight up from the runway ends, and if you were to stand center runway straight out to each end i get hit when passing through these zones. I sometimes get them in other areas while flying but its infrequent and random. The hits are very quick 1 second or less

The planes pitch violently up or roll or yaw. This is troublesome on landings as the planes always balloon at these spots. Some members claim it to be the wind swirling up the hill. But no way is the wind causing my throttle servo to move! My planes are getting larger and more expensive and I don't enjoy nor can I relax when flying.

All FOUR of my planes do this( 3 glow 1 gas), I have moved things around inside each and no change. The gasser is more affected. My first radio was a tx6as on #43. I had this problem then but didn't notice too much because I was green. Second radio was a 8u # 53 with the same problems. I now have the new 9c on #53 still getting hits. I chose these channels because they're not used by anyone else in the club. Our club is small and there's several channels empty.

In the early spring and fall I fly at the in-laws place (large bean field) and I get absolutely no hits whatsoever. Flying here is much more enjoyable until the tractors show up and I'm forced back to the clubs field. I have come to the conclusion that my places are fine and it's something at the field. No one else there seems to have this problem or at least haven't spoken up. There are no other clubs around with a reasonable driving distance.

When asking around about this I get nothing, no ones heard of this happening. Should I try a different channel say, high 60's or seventy's? I could try one of the more popular ones but was trying to avoid the accidental turn on. I don't know, the beans will be out in a month so I'll be good till spring. But flying alone gets old and probably not too safe. I posted this in the radio forum also for more visibility.

If anyone has ideas, thoughts or anything please post. Sorry for the length but thought a good explanation would help.

Thanks,
Dave