I was flying my Vision, while close by someone else was flying anothe quad. Suddenly, the quad lost control and crashed. We then decided to run some tests and check for interference. We found that as soon as I turn on the Vision RC, the other quad FPV started to get heavy interference. It was very obvious, and would go away as soon as I powered off the RC. To me this means that if I can cause interference on another 5.8 setup, they can also cause interference in the Vision. Need to be careful when flying in close proximity with other drones using reverse frequency from the Vision and high power video transmitters.