Comtech EF Data DD2401 - Manual (Page 81)

DD2401 Satellite Demodulator Technical Specifications
MN-DD2401 – Rev. G 7- 3
7.6 DD2401 BER Specifications
7.6.1 BER Performance (Viterbi)
1E-9
1E-8
1E-7
1E-6
1E-5
1E-4
1E-3
1E-2
1E-1
0 1 2 3 4 5 6 7 8 9 10 11 12
Eb/No in dB
BE
R
Viterbi
Decoder
Specification
1/2 Rate
Specification
3/4 Rate
Specification
7/8 Rate
Typical
Performance
B/O/QPSK Uncoded Theory
Figure 7-1 – DD2401 B/O/QPSK BER Performance (Viterbi)
Note: Eb/No values include the effect of using differential decoding and v.35 descrambling.