Yagi Antenne 5.8GHz for DJI Phantom Vision / Plus

Summary Yagi antenna is designed for DJI Phantom Vision or Vision Plus as additional extender for transmitter antenna. Opposite to parabolic antenna has lower gain but wider angle of radiation. I when I tested reached 808m/2650ft in CE mode i.e. up 200m/650ft than without yagi. I designed it for use reamins of Cu sheet and I suppose better results with Al or Cu rods. Thanks to http://www.k7mem.com/Electronic_Notebook/antennas/yagi_vhf_quick.html