Comtech turbo product codec rate 7/8 8-qam – Comtech EF Data CDM-570 User Manual
Page 184
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CDM-570/570L Satellite Modem with Optional IP Module
Revision 12
Forward Error Correction Options
MN/CDM570L.IOM
8–18
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 7/8 8-QAM
1 2 3 4 5 6 7 8 9 10 11 12
BER
Spec limit
Rate 7/8
8-QAM
Typical
performance
Uncoded
8-PSK
Figure 8-9. Rate 7/8 8-QAM Turbo
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