I’ve got a question, for my ground station I use a ALFA AWUS1900 with RTL8814AU and for my Air Station I use a RTL8812BU USB stick. With this configuration nothing is working, both Pi’s booting up and recognising the wifi cards, but no Video and no telemetry. Both running at 5180 MHz. When I turn it around and use the RTL8812BU USB stick as Ground Station and the ALFA AWUS1900 as Air Station then everything works right out of the box. But the ALFA AWUS1900 is really too big to use it as Air Station.
So why does it work only one way and not the other way ?.
Thanks for your Help