after serveral trials and countless coups of coffee i got the Pixhawk conected to the QGC over the Mavlink and the TBS Crossfire.
If i start the session it takes about 3 minutes for the first initialization. It looks there is a large download from the PX4 to the QGC. After that the speed of the connection is quite fast.
Sometimes it happens that on the Vehicle Setup the Summary is not visible. Could this be a reason from the automatic switch between the Mavlink Version 1 and 2?
Have somebody similar experiance with this type of connetion?
If it would be for interest i would write the complete "How To Do" of the connection procedure.