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CDM-625 Advanced Satellite Modem
Forward Error Correction Options
1
1E-1
Uncoded
BPSK/QPSK
1E-2
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
1E-9
1
BER
Figure 7-9. Rate 0.95 QPSK and Rate 0.95 8-PSK Turbo Product Coding
2
3
4
5
Comtech Turbo Product Codec
Spec limit
Rate 0.95
QPSK/OQPSK
Typical performance
2
3
4
5
MN-0000036 (Ref MN/CDM625.IOM)
6
7
8
Rate 0.95 QPSK/OQPSK
and 8-PSK/8-QAM
Spec limit
Rate 0.95
8-PSK
8-QAM
6
7
8
7–19
Revision 1
Eb/No in dB
9
10
11
12
Uncoded
8-PSK
9
10
11
12
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