Hey all, I started with the Phantom 3, and loved it. But I just recently upgraded to the Phantom 4 for its extended range. But before I go flying too far, I was hoping to get some insight. The Phantom 4‘s range is rated at 3.1 miles, but that is pretty much line of sight, correct? I can’t really expect that kind of range over hilly terrain’s or through areas of trees, correct? Or is the range really dependent on any interference while flying, or both? Thank You