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CDM-600L Satellite Modem
Forward Error Correction Options
1
1E-1
1E-2
1E-3
1E-4
Combined sync
threshold, demod
and Sequential
1E-5
Decoder, Rate 1/2
1E-6
1E-7
1E-8
Typical Performance
1E-9
1
BER
Figure 7-6. Sequential with concatenated Reed-Solomon Outer Code
2
3
4
5
Uncoded BPSK/QPSK
Sync
threshold,
Rate 3/4
Sync
threshold,
Rate 7/8
2
3
4
5
6
7
8
Specification
Limit Rate 1/2
and 220,200
Outer Code
Specification
Limit Rate 3/4
and 220,200
Outer Code
6
7
8
7–18
Revision 2
MN/CDM600L.IOM
Eb/No in dB
9
10
11
Sequential
with
concatenated
RS 220,200
Outer Code
512 kbps
Specification
Limit Rate 7/8
and 220,200
Outer Code
9
10
11
12
12
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