"Thanks for the fast and clearly statement.
Then i need to connect my APM over a sbus2cppm converter.
I was just a little bit confused about the picture from this Thread on which it looks like it works without any converter.
"One short question about the Connection from the APM to the FrSky X8R.
On the picture there is a direct connection from the X8R to the APM 2.5 or 2.6.
I thought that ist not possible because X8R uses sbus and APM 2.5 only can PPM(CPPM)
my english isn't so good and i'm just beginning to understand the log Files.
I've attached a picture from your logfile at which you can see the Battery Voltage and the Altitude.
Do you use an 4s Lipo for your hexa ? In this case i…"