Comtech EF Data SDM-2020 - Manual (Page 59)

SDM-2020 Satellite Demodulator Revision 4
Specification MN/SDM2020D.IOM
5–7
5.2.2 8-PSK Reed-Solomon Coding
Note: For 8-PSK Rate 8/9 at symbol rates > 30 Msym/s add 0.4 dB.
Eb/No with Reed-Solomon
BER 2/3 5/6 8/9
10 -4 6.0 7.5 8.5
10 -6 6.3 7.9 8.8
10 -8 6.6 8.3 9.1
10 -10 6.9 8.8 9.4
10 -4
10 -3
10 -5
10 -6
BER
10 -7
10 -9
10 -8
10 -10
3.0 4.0 5.0 6.0
E
b
/N
0
(dB)
7.0 8.0 9.0 10.0 11.0
10 -2
Specification
2/3 Rate 5/6 Rate
8/9 Rate
> 30 Msym/s
8/9 Rate
< 30 Msym/s
Figure 5-4. 8-PSK (2/3, 5/6, 8/9 Rates) With Reed-Solomon