Here is a video I made for my controller antenna modification for my HS720E
Holy Stone HS 720E Controller 6db Omnidirectional SMA Antenna Modification
Holy Stone HS 720E Controller 6db Omnidirectional SMA Antenna Modification
946m tx distance at 120m altitude. Lost FPV after 500m. With the factory antennas, I'm lucky to get 400m before I lose tx signal.OK... What's to be gained? Have you done this and if so did it work / was it worth it?