Newtec MDM6000 - 16 Appendix - Overview of the Used Technologies; DVB-S2, DVB-S2 X and S2 Extensions; DVB-S2 Standard

Newtec Proprietary
Confidentiality: Unrestricted
V1.0
279/314
Appendix - Overview of the Used Technologies MDM6000 Satellite Modem
16 Appendix - Overview of the Used
Technologies
16.1 DVB-S2, DVB-S2X and S2 Extensions
16.1.1 DVB-S2 Standard
The DVB-S2 standard offers 28 ModCods and supports up to 32APSK9/10 FEC codes. The
standard supports by default the following roll off factors 20%, 25% and 35%.
The following figure shows the DVB-S2 efficiency diagram for a roll off factor of 20%.
Refer to the DVB-S2 standard: ETSI EN 302 307.
By adding the Newtecs Clean Channel Technology the efficiency increased up to 15%.
Clean channel technology mainly provides lower roll off factors, 5%, 10% or 15% resulting in better
spectral shape.
The following figure shows the improvement when clean channel technology is added.