Newtec MDM9000 - DVB-S2, DVB-S2 X and S2 Extensions

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Appendix - Overview of the Used Technologies
MDM9000 Satellite Modem
18 Appendix - Overview of the Used
Technologies
18.1 DVB-S2, DVB-S2X and S2 Extensions
18.1.1 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 Newtec's 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.