TBS6522 card is the first card that has support DVB-S2X,basic mode.As such this card does not support NS3,Newtecs or DVB-DNSG.
Astra at 19.2 has a transponder(test)in this format on 11553 H,25500,11/20,DVB-S2X/QPSK,HEVC-SES UHD Demo Channel(Dolby Labs Test Stream)