Product specifications

CDM-600 Satellite Modem Revision 7

Forward Error Correction Options MN/CDM600.IOM

7–24

Figure 7-12. 16-QAM Viterbi, Rate 3/4 and Rate 7/8 with 220,200 RS Outer Code

1E-9

1E-8

1E-7

1E-6

1E-5

1E-4

1E-3

1E-2

1E-1

1 2 3 4 5 6 7 8 9 10 11 12

Eb/No in dB

Specification limit Rate

3/4 Viterbi and 220,200

RS Outer Code

Uncoded BPSK/QPSK

Typical

Performance

Specification

limit Rate 7/8

Viterbi and

220,200 RS

Outer Code

1 2 3 4 5 6 7 8 9 10 11 1

BER

16-QAM Viterbi, Rate 3/4 and Rate 7/8

with 220,200 RS Outer Code

Uncoded 16-QAM