https://forum.arduino.cc/index.php?topic=621250.0 repeats that this is not a well known board.

That said I have worked the embedded designs for decades (since 1979 or so).

You omitted what is long distance. You need that detail along with site information to build a solution. I've worked so many data over RF links over the decades but what I find today is some won't pay for the products. They want it for $3.50.