As we always try to improve our equipment, i already tried 3 different Tx antennas (2x Cloverleaf made by chipsundgrips, 1x SPW made by todibi).
All came up with almost identical results (~5-6km on a calm day with Foxtech 200mW 5G8 equip).
So i decided, that maybe the receiver antenna is limiting my range.
At the moment i use a 10 turn helical from chipsundgrips. Although 10 turns is pretty much, i saw some people that reached over 7km with even a better picture by using only 6 turn helicals.
Circular-Wireless.com has some state of the art antennas and they are not only good looking…they are measured and tweaked as well.
So in a few days my new helical will arrive and then i will compare my range and picture quality with the 10 turn helical, that i am still using.