Hi, I have to agree, out of 3, I have one that works fairly well. I use it in a ground application, my car, but the results are less than stunning. The trouble is that they don't seem to have any range and interference is a big problem. It is like a lot of things, you get what you pay for and if you go cheap, you get cheap. I did end up with the 4 channel receiver and upgraded the camers, but I am still not really happy with the results. I am going to be looking into a flight quality camera even though I still just want one for a drivers view at 80+ miles per hour in my Serpent Vector.