Comtech EF Data CDM-625A - Manual (Page 563)

CDM-625A Advanced Satellite Modem MN-CDM625A
Appendix B Revision 3
B–27
Figure B-9. Sequential Decoding at 2048 kbps QPSK, OQPSK
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 12
Eb/No in dB
Specification limit,
Rate 1/2 Coding
QPSK, OQPSK
Uncoded BPSK/QPSK
Typical
Performance
Specification limit,
Rate 3/4 Coding
QPSK, OQPSK
1 2 3 4 5 6 7 8 9 10 11 12
Specification limit,
Rate 7/8 Coding
QPSK, OQPSK
BER
Sequential Decoding
2048 kbps,
QPSK, OQPSK