Newtec MDM6000 - S2 Extensions

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Appendix - Overview of the Used Technologies MDM6000 Satellite Modem
Refer to DVB website to download the DVB-S2X standard.
https://www.dvb.org/standards/dvb-s2x
16.1.3 S2 Extensions
S2 Extensions is Newtecs proprietary modulation technology. The S2 Extensions modulation
technology combined with Clean Channel Technology delivers gains up to 37% compared to
standard DVB-S2 modulation.
The main features of the S2 Extensions technology are:
• Finer ModCod granularity: there are 87 ModCods (compared to the 28 ModCods in DVB-S2);
• Better ModCod performance: FEC codes and modulations have been redesigned in order to
improve the performance of the existing DVB-S2 ModCods;
• Optimization for linear and non-linear satellite links: Two sets of ModCods are available:
– One set of ModCods is optimized for multi-carrier operation of the transponder (linear
channel operation). In multi-carrier operation, the transponder can not be saturated and a
given back-off is needed to avoid intermodulation between the individual carriers in the
transponder.
– The second set of ModCods is optimized for single carrier operation which allows to saturated
the transponder (non-linear channel).
The following figure shows the efficiency of the DVB-S2X standard compared to Newtecs propriatary
S2 Extensions and to the DVB-S2 standard.