SNR
Минимальные значения сигнал/шум (CNR, C/N) в стандартах DVB-S и DVB-S2 для захвата сигнала
Ниже приведены минимальные значения сигнал/шума(C/N), необходимые для захвата передачи сигнала в стандартах DVB-S с модуляцией QPSK, DVB-S2 с модуляцией QPSK, 8PSK, 16APSK и 32APSK. Значения сигнал/ шум (C/N [дБ]) отличаются из-за FEC (Forward Error Correction).
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S | QPSK | 1/2 | 2.7 |
| DVB-S | QPSK | 2/3 | 4.4 |
| DVB-S | QPSK | 3/4 | 5.5 |
| DVB-S | QPSK | 5/6 | 6.5 |
| DVB-S | QPSK | 7/8 | 7.2 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2 | QPSK | 1/4 | -2.4 |
| DVB-S2 | QPSK | 1/3 | -1.2 |
| DVB-S2 | QPSK | 2/5 | 0.0 |
| DVB-S2 | QPSK | 1/2 | 1.0 |
| DVB-S2 | QPSK | 3/5 | 2.2 |
| DVB-S2 | QPSK | 2/3 | 3.1 |
| DVB-S2 | QPSK | 3/4 | 4.0 |
| DVB-S2 | QPSK | 4/5 | 4.6 |
| DVB-S2 | QPSK | 5/6 | 5.2 |
| DVB-S2 | QPSK | 8/9 | 6.2 |
| DVB-S2 | QPSK | 9/10 | 6.5 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2 | 8PSK | 3/5 | 5.5 |
| DVB-S2 | 8PSK | 2/3 | 6.6 |
| DVB-S2 | 8PSK | 3/4 | 7.9 |
| DVB-S2 | 8PSK | 5/6 | 9.4 |
| DVB-S2 | 8PSK | 8/9 | 10.6 |
| DVB-S2 | 8PSK | 9/10 | 11.0 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2 | 16PSK | 2/3 | 9.0 |
| DVB-S2 | 16PSK | 3/4 | 10.2 |
| DVB-S2 | 16PSK | 4/5 | 11.0 |
| DVB-S2 | 16PSK | 5/6 | 11.6 |
| DVB-S2 | 16PSK | 8/9 | 12.9 |
| DVB-S2 | 16PSK | 9/10 | 13.1 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2 | 32PSK | 3/4 | 12.6 |
| DVB-S2 | 32PSK | 4.5 | 13.6 |
| DVB-S2 | 32PSK | 5/6 | 14.3 |
| DVB-S2 | 32PSK | 8/9 | 15.7 |
| DVB-S2 | 32PSK | 9/10 | 16.1 |
Минимальные значения сигнал/шум (CNR, C/N) в стандарте DVB-S2x для захвата сигнала
Ниже приведены минимальные значения сигнал/шума(C/N), необходимые для захвата передачи сигнала в стандарте DVB-S2х с модуляцией QPSK, 8APSK, 8PSK, 16APSK, 32APSK, 64APSK, 128APSK, 256APSK. Значения сигнал/ шум (C/N [дБ]) отличаются из-за FEC (Forward Error Correction).
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | QPSK | 2/9 | -2.9 |
| DVB-S2x | QPSK | 13/45 | -2.1 |
| DVB-S2x | QPSK | 9/20 | 0.3 |
| DVB-S2x | QPSK | 11/20 | 1.5 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | 8APSK | 5/9-L | 4.8 |
| DVB-S2x | 8APSK | 26/45-L | 5.2 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | 8PSK | 23/36 | 6.2 |
| DVB-S2x | 8PSK | 25/36 | 7.1 |
| DVB-S2x | 8PSK | 13/18 | 7.5 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | 16APSK | 1/2-L | 6.0 |
| DVB-S2x | 16APSK | 8/15-L | 6.6 |
| DVB-S2x | 16APSK | 5/9-L | 6.9 |
| DVB-S2x | 16APSK | 26/45 | 7.6 |
| DVB-S2x | 16APSK | 3/5-L | 7.5 |
| DVB-S2x | 16APSK | 3/5 | 7.8 |
| DVB-S2x | 16APSK | 28/45 | 8.1 |
| DVB-S2x | 16APSK | 23/36 | 8.4 |
| DVB-S2x | 16APSK | 2/3-L | 8.5 |
| DVB-S2x | 16APSK | 25/36 | 9.3 |
| DVB-S2x | 16APSK | 13/18 | 9.8 |
| DVB-S2x | 16APSK | 7/9 | 10.7 |
| DVB-S2x | 16APSK | 77/90 | 12.0 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | 32APSK | 2/3-L | 11.2 |
| DVB-S2x | 32APSK | 32/45 | 11.2 |
| DVB-S2x | 32APSK | 11/15 | 12.2 |
| DVB-S2x | 32APSK | 7/9 | 13.1 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | 64APSK | 32/45-L | 14.0 |
| DVB-S2x | 64APSK | 11/15 | 14.9 |
| DVB-S2x | 64APSK | 7/9 | 15.5 |
| DVB-S2x | 64APSK | 4/5 | 15.9 |
| DVB-S2x | 64APSK | 5/6 | 16.6 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | 128APSK | 3/4 | 17.8 |
| DVB-S2x | 128APSK | 7/9 | 18.6 |
| Standard | Modulation | FEC | C/N [dB] |
| DVB-S2x | 256APSK | 29/45-L | 17.0 |
| DVB-S2x | 256APSK | 2/3-L | 17.3 |
| DVB-S2x | 256APSK | 31/45-L | 18.1 |
| DVB-S2x | 256APSK | 32/45 | 18.6 |