Comtech EF Data SDM-9000 - Manual (Page 164)

Maintenance SDM-9000 Satellite Modem
6–6 Rev. 4
Table 6-2. Conversion to S/N and E
b
/N
0
Chart (8PSK)
(dB) Code Rate 2/3 Code Rate 5/6
(S+N)/N S/N E
b
/N
0
S/N E
b
/N
0
4.0 1.8 -1.2 1.8 -2.2
4.5 2.6 -0.4 2.6 -1.4
5.0 3.3 0.3 3.3 -0.6
5.5 4.1 1.1 4.1 0.1
6.0 4.7 1.7 4.7 0.8
6.5 5.4 2.4 5.4 1.4
7.0 6.0 3.0 6.0 2.1
7.5 6.6 3.6 6.6 2.7
8.0 7.3 4.2 7.3 3.3
8.5 7.8 4.8 7.8 3.9
9.0 8.4 5.4 8.4 4.4
9.5 9.0 6.0 9.0 5.0
10.0 9.5 6.5 9.5 5.6
10.5 10.1 7.1 10.1 6.1
11.0 10.6 7.6 10.6 6.7
11.5 11.2 8.2 11.2 7.2
12.0 11.7 8.7 11.7 7.7
12.5 12.2 9.2 12.2 8.3
13.0 12.8 9.8 12.8 8.8
13.5 13.3 10.3 13.3 9.3
14.0 13.8 10.8 13.8 9.8
14.5 14.3 11.3 14.3 10.4
15.0 14.9 11.9 14.9 10.9
15.5 15.4 12.4 15.4 11.4
16.0 15.9 12.9 15.9 11.9
16.5 16.4 13.4 16.4 12.4
17.0 16.9 13.9 16.9 12.9
17.5 17.4 14.4 17.4 13.4
18.0 17.9 14.9 17.9 14.0
18.5 18.4 15.4 18.4 14.5
19.0 18.9 15.9 18.9 15.0
19.5 19.5 16.4 19.5 15.5
20.0 20.0 16.9 20.0 16.0