There has been talk about flying in a canyon, this video explains a lot.... http://www.youtube.com/watch?v=y3qoVK95Fgo Location (I think) http://maps.google.com/maps?q=Thousand+Creek+Gorge,+Humboldt,+Nevada+89445&hl=en&ll=41.887423,-118.950337&spn=0.006685,0.013937&sll=39.061849,-113.818359&sspn=28.446965,57.084961&geocode=Fc4ofwIdq_To-A&hnear=Thousand+Creek+Gorge&t=h&z=17
In the beginning I was thinking, geez I've flown deeper into Hellgate than this guy in his canyon. It wasn't until about two thirds into the video that he goes down there, and yeah, that was pretty far. But this video didn't really answer any of my questions because I don't know what he was using. Was it a long range system on UHF or a stock 2.4 Ghz radio? What frequency was he using for control and which frequency for video? In the beginning I can see a what may be a antenna mast, but that could be for a common Futaba receiver or his video TX. The video we see in the link does not appear to be the video feed from the FPV system so we don't know if it was full of static or how many drop outs, if any, occurred when he got down in the canyon. One thing I did notice was his stability. In my experience there is usually wind down in a canyon and he didn't seem to be getting much shake. EDIT: Maybe the point was being able to fly in a canyon at all since there was an opinion that multipath would be a deal breaker and this video proves that theory wrong. I presume there had to be multipath present in that canyon but it did not appear to have any affect on the ability to fly way down there with whatever equipment the pilot was using.
