Table A-1. Cdm-750 Co+No/No To C/N (Es/No) And Eb/No (Db) For Dvb-S2 Qpsk And 8Psk - Comtech EF Data CDM-750 Installation And Operation Manual

CDM-750 Advanced High-Speed Trunking Modem
Appendix A

Table A-1. CDM-750 Co+No/No to C/N (Es/No) and Eb/No (dB) for DVB-S2 QPSK and 8PSK

Spectral Efficiency Pilots ON ► 0.478577 0.640827
Code Rate ► 1/4
(Co+No)/No C/N = Es/No Eb/No
2.6 -0.9 2.3
3.0 0.0 3.2
3.4 0.7 3.9
3.8 1.5 4.7
4.2 2.1 5.3
4.6 2.8 6.0
5.0 3.3 6.5
5.4 3.9 7.1
5.8 4.5 7.7
6.2 5.0 8.2
6.6 5.5 8.7
7.0 6.0 9.2
7.4 6.5 9.7
7.8 7.0 10.2
8.2 7.5 10.7
8.6 8.0 11.2
9.0 8.4 11.6
9.4 8.9 12.1
9.8 9.3 12.5
10.2 9.8 13.0
10.6 10.2 13.4
11.0 10.6 13.8
11.4 11.1 14.3
11.8 11.5 14.7
12.2 11.9 15.1
12.6 12.4 15.6
13.0 12.8 16.0
13.4 13.2 16.4
13.8 13.6 16.8
14.2 14.0 17.2
14.6 14.4 17.6
15.0 14.9 18.1
15.4 15.3 18.5
15.8 15.7 18.9
16.2 16.1 19.3
Notes:
1. Eb/No = Es/No - 10 Log (Spectral Efficiency).
(DVB-S2 uses C/N (Es/No), and Eb/No is shown for information)
0.770627 0.965327 1.160026
1/3 2/5 1/2 3/5
Eb/No Eb/No Eb/No Eb/No
1.1 0.3 -0.7 -1.5
1.9 1.1 0.1 -0.7
2.7 1.9 0.9 0.1
3.4 2.6 1.6 0.8
4.1 3.3 2.3 1.5
4.7 3.9 2.9 2.1
5.3 4.5 3.5 2.7
5.9 5.1 4.1 3.3
6.4 5.6 4.6 3.8
6.9 6.1 5.2 4.4
7.5 6.7 5.7 4.9
8.0 7.2 6.2 5.4
8.5 7.7 6.7 5.9
8.9 8.1 7.2 6.4
9.4 8.6 7.6 6.8
9.9 9.1 8.1 7.3
10.3 9.5 8.6 7.8
10.8 10.0 9.0 8.2
11.3 10.5 9.5 8.7
11.7 10.9 9.9 9.1
12.1 11.3 10.4 9.6
12.6 11.8 10.8 10.0
13.0 12.2 11.2 10.4
13.4 12.6 11.7 10.9
13.9 13.1 12.1 11.3
14.3 13.5 12.5 11.7
14.7 13.9 12.9 12.1
15.1 14.3 13.4 12.6
15.5 14.7 13.8 13.0
16.0 15.2 14.2 13.4
16.4 15.6 14.6 13.8
16.8 16.0 15.0 14.2
17.2 16.4 15.4 14.6
17.6 16.8 15.8 15.0
18.0 17.2 16.2 15.4
2. The required C/N for QEF with FECFrame = 16,200 bits is typically 0.2 to 0.3 dB higher.
QPSK
1.290788 1.452076 1.549426 1.615288
2/3 3/4 4/5 5/6
Eb/No Eb/No Eb/No Eb/No
-2.0 -2.5 -2.8 -2.9
-1.1 -1.6 -1.9 -2.1
-0.4 -0.9 -1.2 -1.3
0.3 -0.2 -0.4 -0.6
1.0 0.5 0.2 0.0
1.6 1.1 0.8 0.7
2.2 1.7 1.4 1.3
2.8 2.3 2.0 1.8
3.4 2.9 2.6 2.4
3.9 3.4 3.1 2.9
4.4 3.9 3.6 3.4
4.9 4.4 4.1 4.0
5.4 4.9 4.6 4.4
5.9 5.4 5.1 4.9
6.4 5.9 5.6 5.4
6.8 6.3 6.1 5.9
7.3 6.8 6.5 6.3
7.8 7.3 7.0 6.8
8.2 7.7 7.4 7.2
8.7 8.1 7.9 7.7
9.1 8.6 8.3 8.1
9.5 9.0 8.7 8.6
10.0 9.5 9.2 9.0
10.4 9.9 9.6 9.4
10.8 10.3 10.0 9.8
11.2 10.7 10.5 10.3
11.7 11.2 10.9 10.7
12.1 11.6 11.3 11.1
12.5 12.0 11.7 11.5
12.9 12.4 12.1 11.9
13.3 12.8 12.5 12.4
13.8 13.2 13.0 12.8
14.2 13.7 13.4 13.2
14.6 14.1 13.8 13.6
15.0 14.5 14.2 14.0
A–3
1.724416 1.746049 1.739569 1.935658
8/9 9/10 3/5 2/3
Eb/No Eb/No Eb/No Eb/No
-3.2 -3.3 -3.3 -3.7
-2.4 -2.4 -2.4 -2.9
-1.6 -1.7 -1.7 -2.1
-0.9 -1.0 -0.9 -1.4
-0.2 -0.3 -0.3 -0.7
0.4 0.3 0.3 -0.1
1.0 0.9 0.9 0.5
1.6 1.5 1.5 1.1
2.1 2.1 2.1 1.6
2.6 2.6 2.6 2.1
3.2 3.1 3.1 2.7
3.7 3.6 3.6 3.2
4.2 4.1 4.1 3.7
4.6 4.6 4.6 4.1
5.1 5.1 5.1 4.6
5.6 5.5 5.6 5.1
6.0 6.0 6.0 5.5
6.5 6.4 6.5 6.0
7.0 6.9 6.9 6.5
7.4 7.3 7.4 6.9
7.8 7.8 7.8 7.3
8.3 8.2 8.2 7.8
8.7 8.7 8.7 8.2
9.1 9.1 9.1 8.6
9.6 9.5 9.5 9.1
10.0 9.9 10.0 9.5
10.4 10.4 10.4 9.9
10.8 10.8 10.8 10.3
11.2 11.2 11.2 10.7
11.7 11.6 11.6 11.2
12.1 12.0 12.0 11.6
12.5 12.4 12.5 12.0
12.9 12.9 12.9 12.4
13.3 13.3 13.3 12.8
13.7 13.7 13.7 13.2
3. Shaded areas are high error rate or unstable.
Revision 1
MN-CDM750
8PSK
2.177525 2.422276 2.585924 2.618365
3/4 5/6 8/9 9/10
Eb/No Eb/No Eb/No Eb/No
-4.2 -4.7 -5.0 -5.0
-3.4 -3.9 -4.1 -4.2
-2.6 -3.1 -3.4 -3.4
-1.9 -2.4 -2.7 -2.7
-1.3 -1.7 -2.0 -2.1
-0.6 -1.1 -1.4 -1.4
0.0 -0.5 -0.8 -0.8
0.5 0.1 -0.2 -0.3
1.1 0.6 0.3 0.3
1.6 1.2 0.9 0.8
2.1 1.7 1.4 1.3
2.7 2.2 1.9 1.9
3.1 2.7 2.4 2.3
3.6 3.2 2.9 2.8
4.1 3.6 3.4 3.3
4.6 4.1 3.8 3.8
5.0 4.6 4.3 4.2
5.5 5.0 4.7 4.7
5.9 5.5 5.2 5.1
6.4 5.9 5.6 5.6
6.8 6.4 6.1 6.0
7.3 6.8 6.5 6.5
7.7 7.2 6.9 6.9
8.1 7.7 7.4 7.3
8.6 8.1 7.8 7.7
9.0 8.5 8.2 8.2
9.4 8.9 8.7 8.6
9.8 9.4 9.1 9.0
10.2 9.8 9.5 9.4
10.7 10.2 9.9 9.9
11.1 10.6 10.3 10.3
11.5 11.0 10.7 10.7
11.9 11.4 11.1 11.1
12.3 11.8 11.6 11.5
12.7 12.3 12.0 11.9