Hello everyone, I have a question regarding what type of signal the Phantom 3 uses and how it basically works. I was flying near some tall supports for a building, and there were some metal objects on top. When I went to fly by one to film, as soon as I went behind it, the transmission signal was lost. I couldn't see my drone, and was waiting a few seconds until I heard a bang. Then my Phantom fell from there and smashed on the ground. Here is what figured happened: I did some research and found the sculptures were made of stainless steel and aluminum. As I flew behind them, the signal was lost and RTH was initiated. but, the home point was directly behind the tower. So, the Phantom just flew straight into it. Kind of disappointing. I just wanted to know if the metal interfered with the signal or if it was something else. Thanks!