Comtech EF Data CDM-710G Specifikace stáhnout pdf (Strana 239)

CDM-710G High-Speed Satellite Modem Revision 1

Eb/No Measurement MN-CDM710G

B–3

Table B-1. CDM-710G Co+No/No to C/N (Es/No) and Eb/No (dB) for DVB-S2 QPSK and 8PSK

(DVB-S2 uses C/N (Es/No), and Eb/No is shown for information)

Notes:

1. Eb/No = Es/No – 10 Log (Spectral Efficiency). 2. The Required C/N for QEF with FECFrame = 16,200 bits is typically 0.2 to 0.3 dB higher. 3. Shaded values are high error rate or unusable.

QPSK 8PSK

0.490243 0.656448 0.789412 0.988858 1.188304 1.322253 1.487473 1.587196 1.654663 1.766451 1.788612 1.779991 1.980636 2.228124 2.478562 2.646012 2.679207

1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 5/6 8/9 9/10 3/5 2/3 3/4 5/6 8/9 9/10

(Co+No)/No C/N = Es/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No Eb/No

2.0 -2.3 0.8 -0.5 -1.3 -2.3 -3.1 -3.5 -4.1 -4.3 -4.5 -4.8 -4.9 -4.8 -5.3 -5.8 -6.3 -6.6 -6.6

2.5 -1.1 2.0 0.7 -0.1 -1.0 -1.8 -2.3 -2.8 -3.1 -3.3 -3.6 -3.6 -3.6 -4.1 -4.6 -5.0 -5.3 -5.4

3.0 0.0 3.1 1.8 1.0 0.0 -0.8 -1.2 -1.7 -2.0 -2.2 -2.5 -2.5 -2.5 -3.0 -3.5 -4.0 -4.2 -4.3

3.5 0.9 4.0 2.8 2.0 1.0 0.2 -0.3 -0.8 -1.1 -1.3 -1.5 -1.6 -1.6 -2.0 -2.5 -3.0 -3.3 -3.4

4.0 1.8 4.9 3.6 2.8 1.8 1.0 0.6 0.1 -0.2 -0.4 -0.7 -0.7 -0.7 -1.2 -1.7 -2.1 -2.4 -2.5

4.5 2.6 5.7 4.4 3.6 2.6 1.8 1.4 0.9 0.6 0.4 0.1 0.1 0.1 -0.4 -0.9 -1.3 -1.6 -1.7

5.0 3.3 6.4 5.2 4.4 3.4 2.6 2.1 1.6 1.3 1.2 0.9 0.8 0.8 0.4 -0.1 -0.6 -0.9 -0.9

5.5 4.1 7.2 5.9 5.1 4.1 3.3 2.8 2.3 2.1 1.9 1.6 1.5 1.6 1.1 0.6 0.1 -0.2 -0.2

6.0 4.7 7.8 6.6 5.8 4.8 4.0 3.5 3.0 2.7 2.6 2.3 2.2 2.2 1.8 1.3 0.8 0.5 0.5

6.5 5.4 8.5 7.2 6.4 5.4 4.7 4.2 3.7 3.4 3.2 2.9 2.9 2.9 2.4 1.9 1.5 1.2 1.1

7.0 6.0 9.1 7.9 7.1 6.1 5.3 4.8 4.3 4.0 3.8 3.6 3.5 3.5 3.1 2.6 2.1 1.8 1.8

7.5 6.6 9.7 8.5 7.7 6.7 5.9 5.4 4.9 4.6 4.5 4.2 4.1 4.1 3.7 3.2 2.7 2.4 2.4

8.0 7.3 10.3 9.1 8.3 7.3 6.5 6.0 5.5 5.2 5.1 4.8 4.7 4.7 4.3 3.8 3.3 3.0 3.0

8.5 7.8 10.9 9.7 8.9 7.9 7.1 6.6 6.1 5.8 5.7 5.4 5.3 5.3 4.9 4.4 3.9 3.6 3.6

9.0 8.4 11.5 10.2 9.4 8.5 7.7 7.2 6.7 6.4 6.2 5.9 5.9 5.9 5.4 4.9 4.5 4.2 4.1

9.5 9.0 12.1 10.8 10.0 9.0 8.2 7.8 7.3 7.0 6.8 6.5 6.5 6.5 6.0 5.5 5.0 4.8 4.7

10.0 9.5 12.6 11.4 10.6 9.6 8.8 8.3 7.8 7.5 7.4 7.1 7.0 7.0 6.6 6.1 5.6 5.3 5.3

10.5 10.1 13.2 11.9 11.1 10.1 9.3 8.9 8.4 8.1 7.9 7.6 7.6 7.6 7.1 6.6 6.2 5.9 5.8

11.0 10.6 13.7 12.5 11.7 10.7 9.9 9.4 8.9 8.6 8.5 8.2 8.1 8.1 7.7 7.2 6.7 6.4 6.4

11.5 11.2 14.3 13.0 12.2 11.2 10.4 10.0 9.5 9.2 9.0 8.7 8.7 8.7 8.2 7.7 7.2 7.0 6.9

12.0 11.7 14.8 13.5 12.7 11.8 11.0 10.5 10.0 9.7 9.5 9.2 9.2 9.2 8.7 8.2 7.8 7.5 7.4

12.5 12.2 15.3 14.1 13.3 12.3 11.5 11.0 10.5 10.2 10.1 9.8 9.7 9.7 9.3 8.8 8.3 8.0 8.0

13.0 12.8 15.9 14.6 13.8 12.8 12.0 11.6 11.1 10.8 10.6 10.3 10.3 10.3 9.8 9.3 8.8 8.6 8.5

13.5 13.3 16.4 15.1 14.3 13.4 12.6 12.1 11.6 11.3 11.1 10.8 10.8 10.8 10.3 9.8 9.4 9.1 9.0

14.0 13.8 16.9 15.7 14.9 13.9 13.1 12.6 12.1 11.8 11.6 11.4 11.3 11.3 10.9 10.3 9.9 9.6 9.5

14.5 14.3 17.4 16.2 15.4 14.4 13.6 13.1 12.6 12.3 12.2 11.9 11.8 11.8 11.4 10.9 10.4 10.1 10.1

15.0 14.9 18.0 16.7 15.9 14.9 14.1 13.6 13.1 12.9 12.7 12.4 12.3 12.4 11.9 11.4 10.9 10.6 10.6

15.5 15.4 18.5 17.2 16.4 15.4 14.6 14.2 13.7 13.4 13.2 12.9 12.9 12.9 12.4 11.9 11.4 11.1 11.1

16.0 15.9 19.0 17.7 16.9 15.9 15.1 14.7 14.2 13.9 13.7 13.4 13.4 13.4 12.9 12.4 11.9 11.7 11.6

16.5 16.4 19.5 18.2 17.4 16.5 15.7 15.2 14.7 14.4 14.2 13.9 13.9 13.9 13.4 12.9 12.5 12.2 12.1

17.0 16.9 20.0 18.7 17.9 17.0 16.2 15.7 15.2 14.9 14.7 14.4 14.4 14.4 13.9 13.4 13.0 12.7 12.6

17.5 17.4 20.5 19.3 18.4 17.5 16.7 16.2 15.7 15.4 15.2 15.0 14.9 14.9 14.5 13.9 13.5 13.2 13.1

18.0 17.9 21.0 19.8 19.0 18.0 17.2 16.7 16.2 15.9 15.7 15.5 15.4 15.4 15.0 14.5 14.0 13.7 13.7

18.5 18.4 21.5 20.3 19.5 18.5 17.7 17.2 16.7 16.4 16.3 16.0 15.9 15.9 15.5 15.0 14.5 14.2 14.2

19.0 18.9 22.0 20.8 20.0 19.0 18.2 17.7 17.2 16.9 16.8 16.5 16.4 16.4 16.0 15.5 15.0 14.7 14.7

Spectral Efficiency

Code Rate

1 2 ... 234 235 236 237 238 239 240 241 242 243 244 245 246

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