Comtech EF Data CDM-570AL - Page 137

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Front Panel Operation 6–21 MN-CDM570A
FEC Type Modulation Code Rate
Data Rate Range
EDMAC limited?
Lower Limit
(kbps)
Upper Limit
(Mbps)
VersaFEC-2
Short Block
BPSK
0.489
18.1
0.490
No
QPSK
0.489
36.2
0.979
0.537
39.8
1.075
0.586
43.4
1.173
0.611
45.2
1.221
0.635
47.0
1.270
0.660
48.8
1.319
0.684
50.6
1.368
0.733
54.2
1.466
8-ARY
0.521
93.8
1.564
0.537
96.7
1.612
0.562
101.1
1.686
0.585
105.5
1.759
0.611
109.9
1.832
0.635
114.3
1.906
0.660
118.7
1.979
0.684
123.1
2.000
0.708
127.5
2.000
0.733
131.9
2.000
16-ARY
0.586
234.5
2.000
0.611
244.3
2.000
0.635
254.1
2.000
0.660
263.8
2.000
0.684
273.6
2.000
0.708
283.4
2.000
0.733
293.2
2.000
0.757
302.9
2.000
0.782
312.7
2.000
32-ARY
0.660
824.5
2.000
0.684
855.1
2.000
0.708
885.6
2.000
0.733
916.1
2.000
0.757
946.7
2.000
0.782
977.2
2.000
0.801
1001.6
2.000
0.831
1038.3
2.000
None (Uncoded)
BPSK
Uncoded
4.8
3.000
Yes – see preceding
“IMPORTANT” Note 4
QPSK/OQPSK
Uncoded
9.6
5.000