- Joined
- Dec 12, 2013
- Messages
- 128
- Reaction score
- 22
From a brief look at that it seems clear why you lost contact - it flew behind the hill at an altitude lower than the peak. That should have initiated an RTH, but since it was already at 789 ft above home point, then unless you had the RTH altitude set very high then it may have simply crashed into the back of the hill trying to return.
The Phantom won't descend on an RTH until it's directly overhead. But yes, if the OP went behind a hill, and the hill was higher than 789 feet, then the Phantom would fly into the back of the hill. What I don't know is how the P4's obstacle avoidance works...would it stop and just hover there on the back side of the hill til the battery dies? And then just fall there? Anyway, the back side of the hill sounds like a good place to look.