Comtech EF Data CDM-570A User Manual
Page 446
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CDM-570A/570AL Satellite Modem with Optional Packet Processor
MN-CDM570A
Appendix B
Revision 2
B–18
Figure B-8. Turbo Product Codec Rate 3/4 QPSK/OQPSK, 8-PSK/8-QAM, and 16-QAM
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
Uncoded
BPSK/QPSK
Comtech Turbo Product Codec
Rate 3/4 QPSK/OQPSK,
8-PSK/8-QAM and 16-QAM
1 2 3 4 5 6 7 8 9 10 11 12
BER
Spec limit
Rate 3/4
16-QAM
Spec limit
Rate 3/4
8-PSK/8-QAM
Spec limit -
Rate 3/4
QPSK/OQPSK
Typical performance
Uncoded
8-PSK
Uncoded
16-QAM
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