DVB-S2X is an extension of DVB-S2 satellite digital broadcasting standard.
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DVB-S2X is a digital satellite television broadcast standard. It has been standardised by DVB Project in March 2014 as an optional extension of DVB-S2 standard. It will also become an ETSI standard.
Main features
Compared to DVB-S2, efficiency gains up to 51% can be achieved with DVB-S2X.
Amongst improvements are:
Due to a lack of downward compatibility with existing DVB-S2 decoders, Belgian(?) company Newtec has developed the 'DVB-S2plus/Extensions' technology, which tries to reconcile the benefits of the DVB-S2X with compatibility to existing systems. (http://www.newtec.eu)
Use cases
In particular for DTH, a possible use case is the launch of UHDTV-1 (e.g. 4k) television services in Ku-/Ka-band that will adopt HEVC encoding. (ref,p7)