Comtech EF Data CDM-740 User Manual
Page 65
CDM-740 Advanced Satellite Modem
Revision 0
Front Panel Operation
MN-CDM740
5–13
Table 5-4. Rx Symbol Rate / Data Rate Range – DVB-S2 Short FECFrame = 16,200 Bits
De-
modulation
FEC
Code
Inner
Code
Rate
Symbol Rate
(Msps)
Spectral
Efficiency
Pilot OFF
Data Rate (Mbps)
Pilot OFF
Spectral
Efficiency
Pilot ON
Data Rate (Mbps)
Pilot ON
Min
Max
Min
Max
Min
Max
QPSK
LDPC+
BCH
1/2
1 62
0.848840 0.848840
52.628080
0.830585 0.830585 51.496270
3/5
1.156532 1.156532
71.704984
1.131661 1.131661 70.162982
2/3
1.288400 1.288400
79.880800
1.260693 1.260693 78.162966
3/4
1.420269 1.420269
88.056678
1.389725 1.389725 86.162950
4/5
1.508181 1.508181
93.507222
1.475747 1.475747 91.496314
5/6
1.596093 1.596093
98.957766
1.561768 1.561768 96.829616
8/9
1.727961 1.727961
107.133582
1.690800 1.690800 104.829600
9/10
N/A N/A N/A
N/A
N/A
N/A
8PSK
LDPC+
BCH
3/5
1 62
1.725319 1.725319
106.969778
1.692033 1.692033 104.906046
2/3
1.922040 1.922040
119.166480
1.884959 1.884959 116.867458
3/4
2.118761 2.118761
131.363182
2.077885 2.077885 128.828870
5/6
2.381056 2.381056
147.625472
2.335120 2.335120 144.777440
8/9
2.577778 2.577778
159.822236
2.528046 2.528046 156.738852
9/10
N/A N/A N/A
N/A
N/A
N/A
16APSK
LDPC+
BCH
2/3
1 47
2.548792 2.548792
119.793224
2.505223 2.505223 117.745481
3/4
2.809662 2.809662
132.054114
2.761633 2.761633 129.796751
4/5
2.983575 2.983575
140.228025
2.932574 2.932574 137.830978
5/6
3.157488 3.157488
148.401936
3.103514 3.103514 145.865158
8/9
3.418357 3.418357
160.662779
3.359924 3.359924 157.916428
9/10
N/A N/A N/A
N/A
N/A
N/A
32APSK
LDPC+
BCH
3/4
1 38
3.493093 3.493093
132.737534
3.419165 3.419165 129.928270
4/5
3.709309 3.709309
140.953742
3.630805 3.630805 137.970590
5/6
3.925526 3.925526
149.169988
3.842446 3.842446 146.012948
8/9
4.249850 4.249850
161.494300
4.159906 4.159906 158.076428
9/10
N/A N/A N/A
N/A
N/A
N/A