Comtech EF Data CDM-710 Installation And Operation Manual page 331
70-140 mhz/l-band broadcast satellite modem
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CDM-710/L Broadcast Satellite Modem
Appendix E
Table E-1. CDM-710 Co+No/No to C/N (Es/No) and Eb/No (dB) For DVB-S
Spectral Efficiency
0.921569
1/2
(Co+No)/
C/N =
Eb/No
No
Es/No
4.0
1.8
2.1
4.5
2.6
3.0
5.0
3.3
3.7
5.5
4.1
4.4
6.0
4.7
5.1
6.5
5.4
5.8
7.0
6.0
6.4
7.5
6.6
7.0
8.0
7.3
7.6
8.5
7.8
8.2
9.0
8.4
8.8
9.5
9.0
9.3
10.0
9.5
9.9
10.5
10.1
10.4
11.0
10.6
11.0
11.5
11.2
11.5
12.0
11.7
12.1
12.5
12.2
12.6
13.0
12.8
13.1
13.5
13.3
13.7
14.0
13.8
14.2
14.5
14.3
14.7
15.0
14.9
15.2
15.5
15.4
15.7
16.0
15.9
16.2
16.5
16.4
16.8
17.0
16.9
17.3
17.5
17.4
17.8
18.0
17.9
18.3
18.5
18.4
18.8
19.0
18.9
19.3
19.5
19.5
19.8
20.0
20.0
20.3
20.5
20.5
20.8
21.0
21.0
21.3
21.5
21.5
21.8
22.0
22.0
22.3
Notes: 1) Includes 0.36 dB for bandwidth expansion due to Reed Solomon coding.
2) Shaded values are high error rate or unusable.
and DVB-DSNG
QPSK
1.228758
1.382353
1.535948
2/3
3/4
5/6
Eb/No
Eb/No
Eb/No
0.9
0.4
-0.1
1.7
1.2
0.7
2.5
1.9
1.5
3.2
2.7
2.2
3.8
3.3
2.9
4.5
4.0
3.5
5.1
4.6
4.2
5.8
5.2
4.8
6.4
5.8
5.4
6.9
6.4
6.0
7.5
7.0
6.6
8.1
7.6
7.1
8.6
8.1
7.7
9.2
8.7
8.2
9.7
9.2
8.8
10.3
9.8
9.3
10.8
10.3
9.9
11.4
10.8
10.4
11.9
11.4
10.9
12.4
11.9
11.4
12.9
12.4
12.0
13.4
12.9
12.5
14.0
13.5
13.0
14.5
14.0
13.5
15.0
14.5
14.0
15.5
15.0
14.5
16.0
15.5
15.0
16.5
16.0
15.6
17.0
16.5
16.1
17.5
17.0
16.6
18.1
17.5
17.1
18.6
18.0
17.6
19.1
18.6
18.1
19.6
19.1
18.6
20.1
19.6
19.1
20.6
20.1
19.6
21.1
20.6
20.1
E–3
Code Rate
8PSK
1.612745
1.843137
2.303922
7/8
2/3
5/6
Eb/No
Eb/No
Eb/No
-0.3
-0.9
-1.8
0.5
-0.1
-1.0
1.3
0.7
-0.3
2.0
1.4
0.4
2.7
2.1
1.1
3.3
2.7
1.8
4.0
3.4
2.4
4.6
4.0
3.0
5.2
4.6
3.6
5.8
5.2
4.2
6.3
5.8
4.8
6.9
6.3
5.4
7.5
6.9
5.9
8.0
7.4
6.5
8.6
8.0
7.0
9.1
8.5
7.6
9.6
9.1
8.1
10.2
9.6
8.6
10.7
10.1
9.2
11.2
10.6
9.7
11.7
11.2
10.2
12.3
11.7
10.7
12.8
12.2
11.2
13.3
12.7
11.8
13.8
13.2
12.3
14.3
13.7
12.8
14.8
14.3
13.3
15.3
14.8
13.8
15.9
15.3
14.3
16.4
15.8
14.8
16.9
16.3
15.3
17.4
16.8
15.8
17.9
17.3
16.3
18.4
17.8
16.8
18.9
18.3
17.3
19.4
18.8
17.8
19.9
19.3
18.3
MN/CDM710.IOM
Revision 12
16QAM
2.457516
2.764706
3.225490
8/9
3/4
7/8
Eb/No
Eb/No
Eb/No
-2.1
-2.6
-3.3
-1.3
-1.8
-2.5
-0.6
-1.1
-1.7
0.2
-0.4
-1.0
0.8
0.3
-0.3
1.5
1.0
0.3
2.1
1.6
0.9
2.7
2.2
1.6
3.3
2.8
2.2
3.9
3.4
2.8
4.5
4.0
3.3
5.1
4.6
3.9
5.6
5.1
4.5
6.2
5.7
5.0
6.7
6.2
5.6
7.3
6.8
6.1
7.8
7.3
6.6
8.3
7.8
7.2
8.9
8.4
7.7
9.4
8.9
8.2
9.9
9.4
8.7
10.4
9.9
9.3
11.0
10.4
9.8
11.5
11.0
10.3
12.0
11.5
10.8
12.5
12.0
11.3
13.0
12.5
11.8
13.5
13.0
12.3
14.0
13.5
12.8
14.5
14.0
13.4
15.0
14.5
13.9
15.5
15.0
14.4
16.1
15.5
14.9
16.6
16.0
15.4
17.1
16.5
15.9
17.6
17.1
16.4
18.1
17.6
16.9
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