Table A-3. Dvb-S2 Short Fecframe = 16,200 Bits* - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710/L Broadcast Satellite Modem
Appendix A

Table A-3. DVB-S2 Short FECFrame = 16,200 bits*

(QPSK 1/4, 1/3, and 2/5 are provided for reference purposes)
Inner ***Es/No
Type FEC at PER =
-7
Code 10
1/4 -1.55
1/3 -0.44
2/5 0.50
1/2 1.80
3/5 3.03
QPSK 2/3 3.90
3/4 4.83
4/5 5.48
5/6 5.98
8/9 7.00
9/10 7.22
3/5 6.50
2/3 7.62
3/4 8.91
8PSK
5/6 10.45
8/9 11.79
9/10 12.08
2/3 10.27
3/4 11.51
4/5 12.33
16APSK
5/6 12.91
8/9 14.19
9/10 14.43
3/4 14.03
4/5 14.94
5/6 15.58
32APSK
8/9 16.99
9/10 17.35
* Es/No for short FECFrame is about 0.3 dB higher than the standard. Values in the table are approximate.
** 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
** Occupied
Spectral Normalized
BW for
Efficiency Symbol Rate
10 Mbps
(bps/Hz) (= Bit Rate x)
(25% Rolloff)
Pilots Off
0.365324 2.737 31.479
0.629060 1.590 18.281
0.760928 1.314 15.113
0.848840 1.178 13.548
1.156532 0.865
1.288400 0.776
1.420269 0.704
1.508181 0.663
1.596093 0.627
1.727961 0.579
NA NA
1.725319 0.580
1.922040 0.520
2.118761 0.472
2.381056 0.420
2.577778 0.388
NA NA
2.548792 0.392
2.809662 0.356
2.983575 0.335
3.157488 0.317
3.418357 0.293
NA NA
3.493093 0.286
3.709309 0.270
3.925526 0.255
4.249850 0.235
NA NA
A–6
Spectral Normalized
Efficiency Symbol Rate
(bps/Hz) (= Bit Rate x)
Pilots On
0.357467 2.797
0.615532 1.625
0.744564 1.343
0.830585 1.204
9.944 1.131661 0.884
8.926 1.260693 0.793
8.097 1.389725 0.720
7.625 1.475747 0.678
7.205 1.561768 0.640
6.655 1.690800 0.591
NA NA
6.665 1.692033 0.591
5.983 1.884959 0.531
5.428 2.077885 0.481
4.830 2.335120 0.428
4.461 2.528046 0.396
NA NA
4.512 2.505223 0.399
4.093 2.761633 0.362
3.854 2.932574 0.341
3.642 3.103514 0.322
3.364 3.359924 0.298
NA NA
3.292 3.419165 0.292
3.100 3.630805 0.275
2.930 3.842446
2.706 4.159906 0.240
NA NA
MN/CDM710.IOM
Revision 12
** Occupied
BW for
10 Mbps
(25% Rolloff)
32.171
18.683
15.445
13.846
10.162
9.122
8.275
7.793
7.363
6.802
NA NA
6.797
6.101
5.534
4.925
4.549
NA NA
4.590
4.164
3.921
3.705
3.423
NA NA
3.363
3.167
NA NA
2.764
NA NA