Took my Phantom 3 Pro out to see how far I can go. I stopped at just over 4km and safely returned to my starting point. I was standing on a 10m hill in farmland. The video is a bit choppy as it was recorded as a screen capture and I don't have the settings properly set up for smooth capturing yet.
(This was before my Phantom committed suicide a week later. Just waiting for DJI to repair and send it back.)
(This was before my Phantom committed suicide a week later. Just waiting for DJI to repair and send it back.)