Comtech EF Data CDM-570A User Manual
Page 52
CDM-570A/570AL Satellite Modem with Optional Packet Processor
MN-CDM570A
Introduction
Revision 2
1–18
BER Description
For
BER=
Rate
Guaranteed Eb/No ((typical value in parentheses)
TURBO PRODUCT CODEC
Rate 3/4 QPSK
Rate 3/4 8-PSK
Rate 3/4 16-QAM
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-6
10
-7
10
-8
3/4 (QPSK, OPQSK)
3.8dB (3.4dB)
4.1dB (3.7dB)
4.4dB (4.0dB)
3/4 (8-PSK)
6.2 dB (5.8 dB)
6.4 dB (6.0 dB)
6.8 dB (6.3 dB)
Rate 3/4 (16-QAM)
7.4dB (7.0 dB)
7.8 dB (7.3 dB)
8.2 dB (7.7 dB)
TURBO PRODUCT CODEC
Rate 7/8 QPSK
Rate 7/8 8-PSK
Rate 7/8 16-QAM
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-6
10
-7
10
-8
Rate 7/8 (QPSK, OPQSK)
4.3 dB (4.0 dB)
4.4 dB (4.1 dB)
4.5 dB (4.2 dB)
Rate 7/8 (8-PSK)
7.0 dB (6.6 dB)
7.1 dB (6.7 dB)
7.2 dB (6.8 dB)
Rate 7/8 (16-QAM)
8.1 dB (7.7 dB)
8.2 dB (7.8 dB)
8.3 dB (7.9 dB)
TURBO PRODUCT CODEC
Rate 0.95 QPSK
Rate 0.95 8-PSK
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-6
10
-7
B10
-8
Rate 0.95 (QPSK, OPQSK)
6.4 dB (6.0 dB)
6.7 dB (6.3 dB)
6.9 dB (6.5 dB)
Rate 0.95 (8-PSK)
9.3 dB (8.9 dB)
9.8 dB (9.4 dB)
10.3 dB (9.9 dB)
TURBO PRODUCT CODEC
Rate 3/4 8-QAM
Rate 7/8 8-QAM
Rate 0.95 8-QAM
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-6
10
-7
10
-8
Rate 3/4 (8-QAM)
6.5 dB (6.1 dB)
6.8 dB (6.4 dB)
7.2 dB (6.8 dB)
Rate 7/8 (8-QAM)
6.6 dB (6.2 dB)
6.7 dB (6.3 dB)
6.8 dB (6.4 dB)
Rate 0.95 (8-QAM)
9.6 dB (9.2 dB)
10.1 dB (9.7 dB)
10.6 dB (10.2 dB)
16-QAM VITERBI/R-S
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-6
10
-8
3/4Viterbi/R-S (16-QAM)
8.1 dB (7.5 dB)
8.6 dB (8.0 dB)
7/8 Viterbi/R-S (16-QAM)
9.5 dB (9.0 dB)
10.1 dB (9.5 dB)
VersaFEC CODEC BPSK
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-5
10
-8
0.488 (BPSK)
2.4 dB (2.1 dB)
2.7 dB (2.4 dB)
VersaFEC CODEC QPSK
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-5
10
-8
0.533 (QPSK)
2.3 dB (2.0 dB)
2.5 dB (2.2 dB)
0.631 (QPSK)
2.8 dB (2.5 dB)
3.0 dB (2.7 dB)
0.706 (QPSK)
3.3 dB (3.0 dB)
3.7 dB (3.4 dB)
0.803 (QPSK)
3.8 dB (3.5 dB)
4.1 dB (3.8 dB)
VersaFEC CODEC 8-QAM
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-5
10
-8
0.642 (8-QAM)
4.6 dB (4.3 dB)
4.9 dB (4.6 dB)
0.711 (8-QAM)
5.2 dB (4.9 dB)
5.5 dB (5.2 dB)
0.780 (8-QAM)
5.6 dB (5.3 dB)
6.0 dB (5.7 dB)
VersaFEC CODEC 16-QAM
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-5
10
-8
0.731 (16-QAM)
6.6 dB (6.3 dB)
6.8 dB (6.5 dB)
0.780 (16-QAM)
7.1 dB (6.8 dB)
7.4 dB (7.1 dB)
0.829 (16-QAM)
7.7 dB (7.4 dB)
8.0 dB (7.7 dB)
0.853 (16-QAM)
8.1 dB (7.8 dB)
8.4 dB (8.1 dB)
VersaFEC CODEC - Extended
CCM
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-5
10
-8
0.576 (8-QAM)
4.5 dB (4.2 dB)
4.9 dB (4.6 dB)
0.644 (16-QAM)
6.4 dB (6.1 dB)
6.9 dB (6.6 dB)
Ultra-Low-Latency (ULL) CODEC
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-5
10
-8
0.493 (BPSK)
3.1 dB (2.8 dB)
3.7 dB (3.4 dB)
0.493 (QPSK)
3.1 dB (2.8 dB)
3.7 dB (3.4 dB)
0.654 (QPSK)
3.6 dB (3.3 dB)
4.2 dB (3.9 dB)
0.734 (QPSK)
4.1 dB (3.8 dB)
4.7 dB (4.4 dB)