Comtech EF Data SDM-2020 - Manual (Page 58)

SDM-2020 Satellite Demodulator Revision 4
Specification MN/SDM2020D.IOM
5–6
5.2 BER Performance
5.2.1 QPSK with Reed-Solomon Coding
BER 1/2 2/3 3/4 5/6 7/8
10 -6 3.7 4.4 5.0 5.6 5.9
10 -8 4.0 4.7 5.3 5.9 6.3
10 -11 4.5 5.1 5.8 6.4 6.9
Figure 5-3. QPSK (1/2, 2/3, 3/4, 5/6, 7/8 Rates) with Reed-Solomon
10
-4
10 -5
10
-6
10 -7
10
-9
10 -8
10
-10
3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0
1/2 Rate
Specification
2/3 Rate
5/6 Rate
7/8 Rate
3/4 Rate
E
b
/N
0
(dB)