Carrier to noise vs Eb/No for DVB-S and DVB-S2
Updated 5 August 2007
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| C+N/N (measured on a spectrum analyzer) | dB | |
| C/N | dB | |
| Symbolrate | MBaud | |
| DVB-S2 Pilot | ||
| DVB-S2 Frame | ||
| FEC | ||
| Datarate (Useful bitrate) | kbit/s | |
| C/No overall | dB/Hz | |
| Eb/No datarate (useful bitrate) | dB | |
| Es/No | dB | |
| Eb/No (after FEC) | dB | |
| Eb/No bruttobitrate | dB | |
| Eb/No threshold | dB | |
| Es/No Threshold | dB | |
| Link Margin | dB |
Set FEC before datarate is set if you want to use datarate instead of symbolrate as input.
Formulas used for
DVB-S calculations
Threshold
Eb/No and C/N values as specified in ETS 300 421
| FEC | Eb/No[dB] | C/N[dB] |
1/2 |
4.5 |
4.1 |
2/3 |
5.0 |
5.9 |
3/4 |
5.5 |
6.9 |
5/6 |
6.0 |
7.9 |
7/8 |
6.4 |
8.5 |
1 |
9.0 |
11.7 |
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