Figure 7-21. Versafec Codec – 16-Qam, Rate 0.731, 0.780, 0.829 And 0.853 - Comtech EF Data CDM-625 Installation And Operation Manual

CDM-625 Advanced Satellite Modem
Forward Error Correction Options
1
1E-1
Uncoded BPSK/QPSK
1E-2
Rate
0.780
0.731
16-QAM 16-QAM
1E-3
1E-4
1E-5
1E-6
1E-7
Typical Performance shown -
guaranteed performance curves
are 0.3dB to the right
1E-8
1E-9
1
BER
Figure 7-21. VersaFEC Codec – 16-QAM, Rate 0.731, 0.780, 0.829 and 0.853
2 3 4
Rate Rate Rate
0.829 0.853
16-QAM 16-QAM
2 3 4
5 6 7
Comtech VersaFEC® Codec
Rate 0.731, 0.780, 0.829
and 0.853 16-QAM
5 6 7
7–34
MN-CDM625
Eb/No in dB
8 9 10 11
Uncoded 16-QAM
8 9 10 11
Revision 13
12
12