Table 5-2. Rx Symbol Rate / Data Rate Ranges - Dvb-S; Table 5-3. Rx Symbol Rate / Data Rate Range - Dvb-S2 Normal Fecframe = 64,800 Bits - Comtech EF Data CDM-740 Installation And Operation Manual

CDM-740 Advanced Satellite Modem
Front Panel Operation
Table 5-2. Rx Symbol Rate / Data Rate Ranges – DVB-S
Demodulation FEC Code
Viterbi +
QPSK Reed-
Solomon
Table 5-3. Rx Symbol Rate / Data Rate Range – DVB-S2 Normal FECFrame = 64,800 Bits
Inner
De- FEC
Code
modulation Code
Rate
1/2
3/5
2/3
3/4
LDPC+
QPSK
BCH
4/5
5/6
8/9
9/10
3/5
2/3
3/4
LDPC+
8PSK
BCH
5/6
8/9
9/10
2/3
3/4
4/5
LDPC+
16APSK
BCH
5/6
8/9
9/10
3/4
4/5
LDPC+
32APSK 5/6
BCH
8/9
9/10
Symbol Rate (Msps)
Code Rate
Min
1/2
2/3
3/5 1
5/6
7/8
Symbol Rate
Spectral
(Msps)
Efficiency
Pilot OFF
Min Max
0.988858
1.188304
1.322253
1.487473
1 62
1.587196
1.654663
1.766451
1.788612
1.779991
1.980636
2.228124
1 62
2.478562
2.646012
2.679207
2.637201
2.966728
3.165623
1 47
3.300184
3.523143
3.567342
3.703295
3.951571
1 38 4.119540
4.397854
4.453027
5–12
Spectral Efficiency
Max
0.921569
1.228758
45 1.382353
1.535948
1.612745
Data Rate (Mbps)
Pilot OFF Efficiency
Min Max
0.988858 61.309196
1.188304 73.674848
1.322253 81.979686
1.487473 92.223326
1.587196 98.406152
1.654663 102.589106
1.766451 109.519962
1.788612 110.893944
1.779991 110.359442
1.980636 122.799432
2.228124 138.143688
2.478562 153.670844
2.646012 164.052744
2.679207 166.110834
2.637201 123.948447
2.966728 139.436216
3.165623 148.784281
3.300184 155.108648
3.523143 165.587721
3.567342 167.665074
3.703295 140.725210
3.951571 150.159698
4.119540 156.542520
4.397854 167.118452
4.453027 169.215026
Revision 0
MN-CDM740
Data Rate (Mbps)
Min Max
0.921569 41.470588
1.228758 55.294118
1.382353 62.205882
1.535948 69.117647
1.612745 72.573529
Spectral Data Rate (Mbps)
Pilot ON
Pilot ON
Min
0.965327 0.965327 59.850274
1.160026 1.160026 71.921612
1.290788 1.290788 80.028856
1.452076 1.452076 90.028712
1.549426 1.549426 96.064412
1.615288 1.615288 100.147856
1.724416 1.724416 106.913792
1.746049 1.746049 108.255038
1.739569 1.739569 107.853278
1.935658 1.935658 120.010796
2.177525 2.177525 135.006550
2.422276 2.422276 150.181112
2.585924 2.585924 160.327288
2.618365 2.618365 162.338630
2.574613 2.574613 121.006811
2.896320 2.896320 136.127040
3.090495 3.090495 145.253265
3.221863 3.221863 151.427561
3.439530 3.439530 161.657910
3.482680 3.482680 163.685960
3.623332 3.623332 137.686616
3.866247 3.866247 146.917386
4.030589 4.030589 153.162382
4.302894 4.302894 163.509972
4.356875 4.356875 165.561250
Max