Figure 7-19. Versafec Codec – Qpsk, Rate 0.533, 0.631, 0.706 And 0.803 - 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 Rate
1E-3
0.533 0.631
QPSK QPSK
1E-4
1E-5
1E-6
1E-7
1E-8
1E-9
1
BER
Figure 7-19. VersaFEC Codec – QPSK, Rate 0.533, 0.631, 0.706 and 0.803
2 3 4
Rate Rate
0.706 0.803
QPSK QPSK
Typical performance shown -
guaranteed performance curves
2 3 4
5 6 7
Comtech VersaFEC® Codec
Rate 0.533, 0.631, 0.706,
and 0.803 QPSK
are 0.3 dB to the right
5 6 7
7–32
Revision 13
MN-CDM625
Eb/No in dB
8 9 10
8 9 10
11 12
11 12