Operating instructions

Technical Specifications DMD50 Universal Satellite Modem
7-8 TM118 – Rev. 1.1
7.19 BER Specifications
7.19.1 BER Performance (Viterbi)
1E-9
1E-8
1E-7
1E-6
1E-5
1E-4
1E-3
1E-2
1E-1
0123456789101112
Eb/No in dB
BER
Viterbi
Decoder
Specification
1/2 Rate
Specification
3/4 Rate
Specification
7/8 Rate
Typical
Performance
B/O/QPSK Uncoded Theory
Note: Eb/No values include the effect of using Differential Decoding and V.35
descrambling.
Figure 7-1. B/O/QPSK BER Performance (Viterbi)