Comtech EF Data cdm-570a - Page 132

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Front Panel Operation 6–16 MN-CDM570A
Tx FEC Encoder Selection
Available Tx Modulation Type
Available Tx Code Rate
Viterbi
BPSK
Fixed at 1/2
QPSK
1/2, 3/4, 7/8
OQPSK
Vit-RS
(Viterbi + Concatenated
Reed-Solomon)
BPSK
Fixed at 1/2
QPSK
1/2, 3/4, 7/8
OQPSK
16-QAM (FAST)
3/4, 7/8
TCM-RS (Trellis Coded Modulation
+ Concatenated Reed-Solomon)
8-PSK (FAST) Fixed at 2/3
TPC (Turbo Product Codec)
BPSK
5/16, 21/44
QPSK
21/44, 3/4, 7/8, 0.95
OQPSK
8-PSK (FAST)
3/4, 7/8, 0.95
8-QAM (FAST)
16-QAM (FAST)
3/4, 7/8
VFEC (VersaFEC)
BPSK
Fixed at .488
QPSK
.533, .631, .706, .803
8-QAM (FAST)
.576, .642, .711, .780
16-QAM (FAST)
.644, .731, .780, .829, .853
VF2L (VersaFEC-2 Long Block)
BPSK
0.489
QPSK
0.489, 0.537, 0.586, 0.611, 0.635,
0.660, 0.684, 0.733
8-ARY
0.521, 0.537, 0.562, 0.586, 0.611,
0.635, 0.660, 0.684, 0.708, 0.733
16-ARY
0.586, 0.611, 0.635, 0.660, 0.684,
0.708, 0.733, 0.757, 0.782
32-ARY
0.660, 0.684, 0.708, 0.733, 0.757,
0.782, 0.801, 0.831, 0.855, 0.879
VF2S (VersaFEC-2 Short Block)
BPSK
0.489
QPSK
0.489, 0.537, 0.586, 0.611, 0.635,
0.660, 0.684, 0.733
8-ARY
0.521, 0.537, 0.562, 0.586, 0.611,
0.635, 0.660, 0.684, 0.708, 0.733
16-ARY
0.586, 0.611, 0.635, 0.660, 0.684,
0.708, 0.733, 0.757, 0.782
32-ARY
0.660, 0.684, 0.708, 0.733, 0.757,
0.782, 0.801, 0.831
ULL (Ultra Low Latency)
BPSK
Fixed at .493
QPSK
.493, .654, .734
Unc (Uncoded)
BPSK
Fixed at 1:1
QPSK
OQPSK