Dear Lajos,
See below the BER image with medium power. BER is 0. It seems that it improved.
I have just tried a QSO on the French YSF reflector and the result was the same. With the FMT-400XDR the station I was talking to could not some cuts in my transmission. I changed to the FT-70 and not a single problem.
Le the me remind you that direct DN communication between the FTM-400 and the FT-70 is faultless, it is perfect.
That is really frustrating.
If you have anything else to say I could try, please let me know.
Eduardo