Thanks Guys...
Yep 900Mhz and 1.3Ghz work well around trees and travel through obstacles. The 5.8 don't do well behind trees... I use 433Mhz on my radio with the 1.3Ghz video.
My friend uses 2.4Ghz on his radio and 900Mhz, so he flew the same area I did with just a small flicker from time to time. I also got a few flickers my self.
But it was a pretty good signal all in all.
The MX track has not been raced on in a while, they dress it up with a tractor if they are having a race.
Here is a shot clipped from one of my flights to show the whole track.
![MX Track.jpg MX Track.jpg](https://www.rc-help.com/data/attachments/5/5766-4cf25e4dd795cb3988f7595e29396539.jpg)