Comtech EF Data CDM-625A Installation And Operation Manual page 572

CDM-625A Advanced Satellite Modem
Appendix B
1
1E-1
Uncoded
BPSK/QPSK
1E-2
1E-3
Spec limit
Rate 3/4
QPSK/OQPSK
1E-4
1E-5
1E-6
1E-7
Typical
performance
1E-8
1E-9
1
BER
Figure B-18. LDPC Codec Rate 3/4 QPSK/OQPSK, 8-PSK/8-QAM, and 16-QAM
2 3 4
Spec limit
Rate 3/4
8-PSK
8-QAM
2 3 4
5 6 7
Comtech LDPC
Rate 3/4 QPSK/OQPSK
8-PSK/8-QAM and 16-QAM
5 6 7
B–36
MN-CDM625A
Eb/No in dB
8 9 10 11
Uncoded
8-PSK
Spec limit
Rate 3/4
16-QAM
8 9 10 11
Revision 4
12
12