CDD-880 Multi Receiver 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 6-5. 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
6–6
Revision 0
MN-CDD880
Eb/No in dB
9
10
11
12
Uncoded 16-QAM
9
10
11
12