DJI says that FCC Communication Distance is 800 meters (http://www.dji.com/products/compare-phantom)
In the video below I only used the FPV booster app on my iPhone. I was sitting in my car, and held the controller as stable as possible, pointed at the Phantom. of course at some point I could not see it, but I did the best I could.
VERY happy with the results! All stock!
[youtube]https://www.youtube.com/watch?v=8BqyWB3-pSM[/youtube]
In the video below I only used the FPV booster app on my iPhone. I was sitting in my car, and held the controller as stable as possible, pointed at the Phantom. of course at some point I could not see it, but I did the best I could.
VERY happy with the results! All stock!
[youtube]https://www.youtube.com/watch?v=8BqyWB3-pSM[/youtube]