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CDM-600L Satellite Modem
Forward Error Correction Options
1
1E-1
Uncoded
BPSK/QPSK
1E-2
Performance with CDM-600
Firmware Version 1.1.5
1E-3
Spec limit
Rate 3/4
8-PSK
1E-4
Spec limit
Rate 3/4
QPSK/OQPSK
1E-5
1E-6
1E-7
1E-8
Typical performance
1E-9
1
BER
2
3
4
(or higher )
2
3
4
Figure 7-8. Comtech EF Data Turbo Product Codec
Rate 3/4 QPSK/OQPSK, 8-PSK and 16-QAM
5
6
7
Comtech Turbo Product Codec
Rate 3/4 QPSK/OQPSK,
8-PSK and 16-QAM
5
6
7
7–20
MN/CDM600L.IOM
Eb/No in dB
8
9
10
11
Uncoded
16-QAM
Uncoded
8-PSK
Spec limit
Rate 3/4
16-QAM
8
9
10
11
Revision 2
12
12
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