The antenna is the stock way it was set up. The antenna goes through a pushrod tube and exits out of the fuselage in the tail area.



"Ifthe throttle is surging sounds like the radio."

I doubt it's the radio because I range check again after the flight and it worked fine.

The throttle surged when the plane suddenly went down and up. It was like when your in a full scale airliner and there's severe turbulence. It was like I lost lift and the engine revved.