Comtech EF Data CDM-625A Installation And Operation Manual page 523

CDM-625A Advanced Satellite Modem
Appendix B
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 B-6. 16-QAM Rates 3/4 and 7/8 with Concatenated RS 220,200 Outer Code
2 3 4
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
Typical
Performance
RS Outer Code
5 6 7
B–19
MN-CDM625A
Eb/No i n dB
8 9 10
Uncoded 16-QAM
Specification
limit Rate 7/8
Viterbi and
220,200 RS
Outer Code
8 9 10
Revision 0
1 1 12
11 12