Comtech EF Data CDM-570A Installation And Operation Manual page 145

IMPORTANT NOTE – All selections are always viewable. If a Hardware or FAST
option is either uninstalled or invalid, the cursor will skip past the unavailable
choice.
The VFEC (VersaFEC), ULL (Ultra Low Latency), VF2L (VersaFEC-2 Long Block),
and VF2S (VersaFEC-2 Short Block) Rx FEC types and their available Rx
Demodulation Types, Codes, and Data Rates are UNAVAILABLE when operating
in CDM-570 Compatible Mode. If the Rx FEC Type is VFEC or ULL when CDM-570
Compatible Mode is selected, then the Rx FEC Type will be reset to Viterbi and
the Demodulation and Code Rate will also be reset to appropriate values. See
Section 6.2 for further information.
Rx FEC Decoder Selection
Viterbi
Vit-RS
(Viterbi + Concatenated Reed-
Solomon)
TCM-RS (Trellis Coded Modulation
+ Concatenated Reed-Solomon)
TPC (Turbo Product Codec)
VFEC (VersaFEC)
VF2L (VersaFEC-2 Long Block)
Front Panel Operation
CDM-570A/570AL Satellite Modem with Optional Packet Processor
Available Rx Demodulation Type
BPSK
QPSK
OQPSK
BPSK
QPSK
OQPSK
16-QAM (FAST)
8-PSK (FAST)
BPSK
QPSK
OQPSK
8-PSK (FAST)
8-QAM (FAST)
16-QAM (FAST)
BPSK
QPSK
8-QAM (FAST)
16-QAM (FAST)
BPSK
QPSK
8-ARY
16-ARY
32-ARY
6–29
Revision 5
Available Rx Code Rate
Fixed at 1/2
1/2, 3/4, 7/8
Fixed at 1/2
1/2, 3/4, 7/8
3/4, 7/8
Fixed at 2/3
5/16, 21/44
21/44, 3/4, 7/8, 0.95
3/4, 7/8, 0.95
3/4, 7/8
Fixed at .488
.533, .631, .706, .803
.576, .642, .711, .780
.644, .731, .780, .829, .853
0.489
0.489, 0.537, 0.586, 0.611, 0.635,
0.660, 0.684, 0.733
0.521, 0.537, 0.562, 0.586, 0.611,
0.635, 0.660, 0.684, 0.708, 0.733
0.586, 0.611, 0.635, 0.660, 0.684,
0.708, 0.733, 0.757, 0.782
0.660, 0.684, 0.708, 0.733, 0.757,
0.782, 0.801, 0.831, 0.855, 0.879
MN-CDM570A