CDM-570/570L Satellite Modem with Optional IP Module
Forward Error Correction Options
1
1E-1
Uncoded
BPSK/QPSK
1E-2
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
Typical
performance
1E-9
1
BER
Rate 21/44 QPSK, Rate 0.95 QPSK and Rate 0.95 8-PSK
2
3
4
Spec limit
Rate 1/2
QPSK/OQPSK
2
3
4
Figure 7-6. Comtech EF Data Turbo Product Codec
5
6
7
8
Comtech Turbo Product Codec
Rate 21/44 QPSK/OQPSK
Rate 0.95 QPSK/OQPSK
and 8-PSK
Spec limit
Rate 0.95
QPSK/OQPSK
Spec limit
Rate 0.95
5
6
7
8
7–15
MN/CDM570L.IOM
Eb/No in dB
9
10
11
Uncoded
8-PSK
8-PSK
9
10
11
Revision 4
12
12
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