Figure 7-6 Viterbi With Concatenated Rs 2200,200 Outer Code 512 Kbps - Comtech EF Data CDM-550T Manual

Forward Error Correction Options
1 2
1E-1
1E-2
1E-3
1E-4
Combined sync
threshold, demod
and Sequential
1E-5
Decoder, Rate 1/2
threshold,
Rate 3/4
1E-6
threshold,
Rate 7/8
1E-7
1E-8
Typical Performance
1E-9
1 2
BER

Figure 7-6 Viterbi with concatenated RS 2200,200 Outer Code 512 kbps

7–14
3 4 5
Uncoded BPSK/QPSK
Sync
Sync
3 4 5
6 7 8 9
Sequential
concatenated
RS 220,200
Outer Code
512 kbps
Specification
Limit Rate 1/2
and 220,200
Outer Code
Specification
Limit Rate 3/4
and 220,200
Outer Code
6 7 8 9
CDM-550T Satellite Modem
Eb/No in dB
10 11 12
with
Specification
Limit Rate 7/8
and 220,200
Outer Code
10 11 12
Rev. 1.3