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CDM-625 Advanced Satellite Modem
Forward Error Correction Options
1
1E-1
Uncoded
BPSK/QPSK
1E-2
Spec limit -
Rate 3/4
QPSK/OQPSK
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
Typical performance
1E-9
1
BER
Figure 7-12. Rate 3/4 QPSK/OQPSK, 8-PSK/8-QAM and 16-QAM Turbo Product Codec
2
3
4
5
Spec limit
Rate 3/4
8-PSK/8-QAM
2
3
4
5
6
7
8
Comtech Turbo Product Codec
Rate 3/4 QPSK/OQPSK,
8-PSK/8-QAM and 16-QAM
Uncoded
8-PSK
6
7
8
7–25
Revision 13
MN-CDM625
Eb/No in dB
9
10
11
12
Uncoded
16-QAM
Spec limit
Rate 3/4
16-QAM
9
10
11
12
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