I have an esp32 gateway connected on a 8dBi collinear antenna. I am testing my gateway with another esp32 which is on the top of my car and whitch sends position indefinitely going trough sf7 to sf10 (antenna 3dBi).
Evering works fine and I reach a distance of 3.6 km with sf7 very easily.
For the other sf values, I can only reah 500…800m.
Do you have an expanation ?
is it due to these cheap boards ?
is it because the car is moving ?
thank a lot for your answers !!!