CDM-710G High-Speed Satellite Modem
Revision 1
Forward Error Correction Options
MN-CDM710G
11–3
Table 11-1. Occupied Bandwidth for DVB-S2 Standard FECFrame = 64, 800 bits
(QPSK 1/4, 1/3 and 2/5 are for information purposes)
Type
Inner
FEC
Code
**Es/No
At PER =
10
-7
Pilots Off
Pilots On
Spectral
Efficiency
(bps/Hz)
Normalized
Symbol Rate
(= Bit Rate x)
* Occupied
BW for
10 Mbps
(25% Rolloff)
Spectral
Efficiency
(bps/Hz)
Normalized
Symbol Rate
(= Bit Rate x)
* Occupied
BW for
10 Mbps
(25% Rolloff)
QPSK 1/4 -1.85 0.490243 2.040
23.458
0.478577
2.090
24.030
QPSK 1/3 -0.74 0.656448 1.523
17.519
0.640827
1.560
17.946
QPSK 2/5 0.20 0.789412 1.267
14.568
0.770627
1.298
14.923
QPSK 1/2 1.50 0.988858 1.011
11.630
0.965327
1.036
11.913
QPSK 3/5 2.73 1.188304 0.842
9.678
1.160026
0.862
9.914
QPSK 2/3 3.60 1.322253 0.756
8.697
1.290788
0.775
8.909
QPSK 3/4 4.53 1.487473 0.672
7.731
1.452076
0.689
7.920
QPSK 4/5 5.18 1.587196 0.630
7.245
1.549426
0.645
7.422
QPSK 5/6 5.68 1.654663 0.604
6.950
1.615288
0.619
7.119
QPSK 8/9 6.70 1.766451 0.566
6.510
1.724416
0.580
6.669
QPSK 9/10 6.92 1.788612
0.559
6.430
1.746049
0.573
6.586
8PSK 3/5 6.20 1.779991 0.562
6.461
1.739569
0.575
6.611
8PSK 2/3 7.32 1.980636 0.505
5.806
1.935658
0.517
5.941
8PSK 3/4 8.61 2.228124 0.449
5.161
2.177525
0.459
5.281
8PSK 5/6 10.15 2.478562 0.403
4.640
2.422276
0.413
4.748
8PSK 8/9 11.49 2.646012 0.378
4.346
2.585924
0.387
4.447
8PSK 9/10 11.78 2.679207
0.373
4.292
2.618365
0.382
4.392
16APSK 2/3
9.97
2.637201
0.379
4.361
2.574613
0.388
4.467
16APSK 3/4 11.21 2.966728
0.337
3.876
2.896320
0.345
3.971
16APSK 4/5 12.03 3.165623
0.316
3.633
3.090495
0.324
3.721
16APSK 5/6 12.61 3.300184
0.303
3.485
3.221863
0.310
3.569
16APSK 8/9 13.89 3.523143
0.284
3.264
3.439530
0.291
3.343
16APSK 9/10 14.13
3.567342
0.280
3.224
3.482680
0.287
3.302
32APSK 3/4 13.73 3.703295
0.270
3.105
3.623332
0.276
3.174
32APSK 4/5 14.64 3.951571
0.253
2.910
3.866247
0.259
2.974
32APSK 5/6 15.28 4.119540
0.243
2.792
4.030589
0.248
2.853
32APSK 8/9 16.69 4.397854
0.227
2.615
4.302894
0.232
2.673
32APSK 9/10 17.05
4.453027
0.225
2.583
4.356875
0.230
2.640
* Taken at the -10 dB points on the plot of power spectral density, the occupied bandwidth is
1.19 x Symbol Rate for 35%, and 1.15 x Symbol Rate for 25%.
** Includes implementation loss.
Summary of Contents for CDM-710G
Page 2: ......
Page 8: ...This page is intentionally blank...
Page 26: ...CDM 710G High Speed Satellite Modem Revision 1 Preface MN CDM710G xx Notes...
Page 48: ...CDM 710G High Speed Satellite Modem Revision 1 Introduction MN CDM710G 1 22 Notes...
Page 130: ...CDM 710G High Speed Satellite Modem Revision 1 Front Panel Operation MN CDM710G 6 54 Notes...
Page 150: ...CDM 710G High Speed Satellite Modem Revision 1 SNMP Interface MN CDM710G 8 4 Notes...
Page 160: ...CDM 710G High Speed Satellite Modem Revision 1 Clock Modes MN CDM710G 10 6 Notes...
Page 180: ...CDM 710G High Speed Satellite Modem Revision 1 HSSI Interface CDI 60 MN CDM710G 13 6 Notes...
Page 246: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...