Comtech EF Data CDM-570A Installation And Operation Manual page 125

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Front Panel Operation
employed, the upper data rate is reduced by 5% for data rates up to 2.048 Mbps,
and by 1.6% for data rates above 2.048 Mbps, where EDMAC2 framing is used, or
for Rate 21/44 BPSK/QPSK TPC, or Rate 5/16 BPSK TPC.
FEC Type Modulation
BPSK
Viterbi
QPSK/OQPSK
BPSK
QPSK/OQPSK
Viterbi + R-S
16-QAM
TCM + R-S 8-PSK
BPSK
QPSK/OQPSK
Turbo
8-PSK/8-QAM
16-QAM
BPSK
QPSK
VersaFEC 8-QAM
16-QAM
BPSK
Ultra-Low
Latency (ULL)
QPSK
Data Rate Range
Code Rate
Lower Limit
(kbps)
1/2 2.4
1/2 4.8
3/4 7.2
7/8 8.4
1/2 2.4
1/2 4.3
3/4 6.5
7/8 7.5
3/4 13.0
7/8 16.8
2/3 8.7
5/16 2.4
21/44 2.4
21/44 4.8
3/4 7.2
7/8 8.4
0.95 9.1
3/4 10.8
7/8 13.6
0.95 15.3
3/4 14.4
7/8 16.8
0.488 2.4
0.533 5.2
0.631 6.1
0.706 6.8
0.803 7.8
0.576 8.3
0.642 9.3
0.711 10.3
0.780 11.3
0.644 12.4
0.731 14.1
0.780 15.0
0.829 16.0
0.853 16.4
0.493 2.4
0.493 4.7
0.654 6.3
0.734 7.0
6–17
EDMAC limited?
Upper Limit
(Mbps)
1.500
3.000
4.500
5.250
1.363
2.727
4.091
4.666
Yes – see preceding
4.000
"IMPORTANT" Note 4
4.666
4.400
0.937
1.430
2.860
4.500
5.250
5.666
6.750
7.875
8.500 No
9.000
9.980
1.462
3.200
3.785
4.233
4.818
5.179
5.782
6.401
7.021
No
7.726
8.776
9.361
9.946
10.239
1.480
2.960
3.924
4.405
MN-CDM570A
Revision 3