Comtech EF Data CDM-625 - Page 314

CDM-625 Advanced Satellite Modem Revision 13
Forward Error Correction Options MN-CDM625
7–36
Figure 7-23. ULL Codec – BPSK/QPSK Rate 0.493 and QPSK, Rate 0.654 and 0.734
1E-9
1E-8
1E-7
1E-6
1E-5
1E-4
1E-3
1E-2
1E-1
1 2 3 4 5 6 7 8 9 10 11 1 2
Eb/No in dB
Uncoded
BPSK/QPSK
Comtech Ultra-Low-Latency
(ULL) Codec - Rate 0.493
BPSK/QPSK,
0.654 and 0.734 QPSK
1 2 3 4 5 6 7 8 9 10 11 1 2
BER
Rate
0.493
BPSK/QPSK
Typical performance shown -
guaranteed performance curves
are 0.3 dB to the right
Rate
0.654
QPSK
Rate
0.734
QPSK