Figure 7-9. Sequential Decoding At 512 Kbps With Rs 220,200 Outer Code - Comtech EF Data CDM-625 Installation And Operation Manual

CDM-625 Advanced Satellite Modem
Forward Error Correction Options
1
1E-1
1E-2
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
Specification Limit
Rate 1/2 and
220,200 Outer Code
BPSK, QPSK, OQPSK
1E-9
1
BER

Figure 7-9. Sequential Decoding at 512 kbps with RS 220,200 Outer Code

2 3 4 5
Uncoded BPSK/QPSK
Typical
Performance
2 3 4 5
6 7 8
Sequential with
concatenated RS 220,200
Outer Code, 512 kbps
BPSK, QPSK, OQPSK
Specification Limit
Rate 3/4 and
220,200 Outer Code
QPSK, OQPSK
6 7 8
7–22
Revision 13
MN-CDM625
Eb/No in dB
9 10 11
Specification Limit
Rate 7/8 and
220,200 Outer Code
QPSK, OQPSK
9 10 11
12
12