Hi Im trying to extend the range of my phantom vision 2 plus. I opened up the wifi repeater and connected pigtails to it with directional antennas on. i also did the same with the controller and connecting a 5.8ghz antenna on that. I've flown it off the roof a couple of times as i live in a 15 story building but it only travels up a couple of hundred feet then comes back home after loosing connection. does it only reach a maximum height from ground level or should it fly higher since i am higher is there anything i can do to make my phantom fly much further?????