Figure 6-8. 16-Qam Viterbi, Rate 3/4 And Rate 7/8 With 220,200 R-S Outer Code - Comtech EF Data CDM-Qx Installation And Operation Manual

CDM-Qx Satellite Modem
Forward Error Correction Options
1
1E-1
Uncoded BPSK/QPSK
1E-2
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
1E-9
1
BER

Figure 6-8. 16-QAM Viterbi, Rate 3/4 and Rate 7/8 with 220,200 R-S Outer Code

2 3 4 5
16-QAM Viterbi, Rate 3/4 and Rate 7/8
with 220,200 RS Outer Code
Specification limit Rate
3/4 Viterbi and 220,200
2 3 4 5
6 7 8
Typical
Performance
RS Outer Code
6 7 8
6–16
Revision 6
MN/CDMQx.IOM
Eb/No in dB
9 10 11 12
Uncoded 16-QAM
Specification
limit Rate 7/8
Viterbi and
220,200 RS
Outer Code
9 10 11 12