Sunday morning I decided to take Sophie up and fly her to my house to shoot the roof. The first time she did ok and flew back no problem. I decided to try it again but this time I wanted to fly down to the back deck and shoot a couple of pics. I got to just above my roof when it said signal loss and the screen froze. I pressed the return home button maybe a million times but I think with the signal loss she decided to return home by herself.The screen came back on when she got halfway back to me. There are nothing but low trees between my house and the takeoff point at the park. Perfect for distance experiments. I think it's time to invest in some antenna boosters.