Comtech EF Data CDM-570A Installation And Operation Manual page 499

1
1E-1
Uncoded
BPSK/QPSK
1E-2
Rate
1E-3
0.493
BPSK/QPSK
1E-4
1E-5
1E-6
1E-7
1E-8
1E-9
1
BER
Figure B-17. ULL Codec Rate 0.493 BPSK/QPSK and Rates 0.654 and 0.734 QPSK
FEC (Forward Error Correction) Options
CDM-570A/570AL Satellite Modem with Optional Packet Processor
2 3 4 5
Rate Rate
0.654 0.734
QPSK QPSK
Typical performance shown -
guaranteed performance curves
2 3 4
6 7 8
Comtech Ultra-Low-Latency
(ULL) Codec - Rate 0.493
BPSK/QPSK,
0.654 and 0.734 QPSK
are 0.3 dB to the right
5 6 7
B–35
Revision 5
Eb/No in dB
9 10 11
8 9 10 11
MN-CDM570A
12
12