True, I indeed use Echine VTX. It is advertised to be able to fly at the distance ≥2km at 600mW. My first intermediate goal is to get to this 2km with video signal. My ultimate goal is to fly at 5-6km distance with video signal. I need to take care of both - control and video. So the first question is whether this 915MHz Jumper R900 receiver is capable to fly at the range of 5-6km? What is your estimation?
Once I achieve video signal at 2km range - I’ll think how to stretch it further. Even though I didn’t quite yet understand how those devices are working, but I saw a 60km range video device.
In general I try to keep the drone itself as cheap as possible (since it is at risk most on such long distances) and prefer to invest into the static equipment to get better signal/quality.