OK guys, here is what is happening: Both after-market antennas are circular polarization. They also exhibit "gain". So, they are concentrating the RF in the forward direction and splitting it between horizontal and vertical polarization. Because the Phantom is moving through 3D space, the polarization of the drone's signal is shifting orientation dynamically as it moves. The signals both directions are also scattering and reflecting off of physical surfaces and re-combining at the drone and controller's antennas. This creates very fast fluttering of the signal...as some reflections cancel and some reflections re-enforce the signal. Using circular polarization cuts these signal drops in half over any typical operating path - because you have RF in both polarizations with circular.. You've heard this flutter on FM broadcast radio in the car..we call it "Picket Fencing". There is tremendous attenuation of 2.4ghz RF through thick forests or buildings. It is actually reflecting around and bouncing off nearby objects to make it's journey. As well, microwave RF bends through the air...it refracts like light. So, over a long distance "path" - tilting your controller up slightly from the line-of-sight path to the drone - will give maximum signal. (15% tilt up for a 2+ mile path) This is a secret known by TV station remote truck dish operators. The atmosphere is bending it slightly in an arc. The large dishes you see on towers carrying long-haul data etc...usually operate over paths of 25-50 miles. Since they are in the clear...they typically only need to run low power to make the trip. It's ALL about getting YOU up and in the clear to the drone. Bob