I need to make a film and need to fly my Phantom 2 V2 with Hero4 Silver Gopro in certain environments. 1) I need to fly in an orchard. The trees are tall enough that when the phantom passes behind a trunk, the signal may be lost for 1/2 sec at most. 2) Yes, I know this is a bit risky, but I got to do this...but I also need to fly into a dining hall. I will start outside and go through an open double door about 10 feet in, then come back out back out the front, then fly up (outside). There is a wooden pole that is 1 foot wide on the front porch that may block the signal (again for maybe 1/2 second). Now my question is this. I read that if the signal is lost for 3 seconds, then the phantom will go to RTH mode. So, am I safe to do what wanted in part 1 and 2 above (as far as the signal goes)?