Bernd and Robert:
I think people could benefit from a description of your hardware setup, power, dish, LO type, etc. used to reach this high speeds.
And if you followed some procedure for setting the right audio levels and ensure clean signals.
73 de Oscar DJ0MY
a bit late , but here my setup:
FT-857 (TCXO) - ALC max. 50% / Sound-IF Yaesu SCU-17 / TRVTR SG-Lab / GPSDO (Leo Bodnar) / PA SG-Lab (~8W for VARA) / 2.5m Airborne 10 / WIFI Grid Dish H-pol. ("barbeque antenna"...hi)
85cm offset dish (my ASTRA-TV-dish expanded with second LNB for QO-100) / LNB from remoteqth.com with TXCO (25.78718 mc) and really ultra low jitter (!) (LO 10.057 GHz / output 432 mc) / FT-736R
And of course: VARA SAT high speed licence.
So, as you can see, nothing special.
73 de Robert - DL5GAC