Figure 6-9. Versafec Codec – 16-Qam, Rate 0.731, 0.780, 0.829 And 0.853 - Comtech EF Data CDM-840 Installation And Operation Manual

CDM-840 Remote Router
Forward Error Correction
1
1E-1
Uncoded BPSK/QPSK
1E-2
Rate
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 6-9. VersaFEC Codec – 16-QAM, Rate 0.731, 0.780, 0.829 and 0.853
2 3 4 5
Rate
Rate Rate
0.780 0.829 0.853
16-QAM 16-QAM
2 3 4 5
6 7 8
Comtech VersaFEC® Codec
Rate 0.731, 0.780, 0.829
and 0.853 16-QAM
6 7 8
6–12
Revision 0
MN-CDM840
Eb/No in dB
9 10 11 12
Uncoded 16-QAM
9 10 11 12