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7 ber performance (16qam viterbi) – Comtech EF Data DMD-2050E User Manual

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DMD2050E Universal Satellite Modem

Technical Specifications

MN-DMD2050E Revision 2

7–15

7.12.7

BER Performance (16QAM Viterbi)

Figure 7-7. DMD2050E 16QAM BER Performance (Viterbi)

Note: Eb/No values include the effect of using differential decoding and v.35 descrambling.

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

13

14

15

BE

R

Eb/No in dB

Viterbi

Decoder

Specification

3/4 Rate

Specification

7/8 Rate

Typical

Performance

16QAM Uncoded Theory

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