Hi All, It seems like DATV on a future IARU Region 2 GEO Hamsat might be incorporating the DVB-S2X standard. This whitepaper by Newtec is an easy read to explain the concepts involved. https://www.newtec.eu/frontend/files/application_note/newtec-market-trend-4k-dvb-s2x.pdf Bernard, KC9SGV Sent from my iPad