Team,
small update: there’s good news and there’s bad news 
The good news is that:
a) today my cabling came in and I managed to get some bytes across the air.
b) I fixed the MD command
c) I created a receive data which returns data and a write serial which writes the received data to serial, based on the OF setting
The bad news is that I updated my code to fix items b and c, but somehow no data is transferred across the air any more.
So I need to do some more debugging
Cheers,
Hans