Figure 12. Viterbi With Concatenated Rs Outer Code; Mn/Cdm570L.iom - Comtech EF Data CDM-570L Installation And Operation Manual

CDM-570L Satellite Modem with IP Module
1
1E-1
1E-2
1E-3
1E-4
Combined sync
1E-5
threshold, demod
and Viterbi
Decoder, Rate 1/2
1E-6
1E-7
Typical performance
1E-8
1E-9
1
BER
2 3 4 5
Uncoded BPSK/QPSK
Sync
threshold,
Rate 3/4
Sync
threshold,
Rate 7/8
2 3 4 5

Figure 12. Viterbi with concatenated RS Outer Code

6 7 8 9
Viterbi with
concatenated
RS 220,200
Outer Code
Specification
Limit Rate 1/2
and 220,200
Outer Code
Specification
Limit Rate 3/4
and 220,200
Outer Code
Specification
Limit Rate 7/8
and 220,200
Outer Code
6 7 8 9
95
Revision 1

MN/CDM570L.IOM

Eb/No in dB
10 11 12
10 11 12