Comtech EF Data CDM-570AL - Standard AUPC (Automatic Uplink Power Control)

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Introduction 1–21 MN-CDM570A
BER Description
For
BER=
Rate
Guaranteed Eb/No ((typical value in parentheses)
VersaFEC-2 Short Block
CODEC
8-ARY
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-4
10
-8
0.521 8-ARY
3.5 dB (3.2 dB)
4.0 dB (3.7 dB)
0.537 8-ARY
3.5 dB (3.2 dB)
4.1 dB (3.8 dB)
0.562 8-ARY
3.6 dB (3.6 dB)
4.2 dB (3.9 dB)
0.586 8-ARY
3.7 dB (3.4 dB)
4.2 dB (3.9 dB)
10
-4
10
-8
0.611 8-ARY
3.9 dB (3.6 dB)
4.3 dB (4.0 dB)
0.635 8-ARY
3.9 dB (3.6 dB)
4.4 dB (4.1 dB)
0.660 8-ARY
4.1 dB (3.8 dB)
4.5 dB (4.2 dB)
0.684 8-ARY
4.4 dB (4.1 dB)
4.7 dB (4.4 dB)
10
-4
10
-8
0.708 8-ARY
4.5 dB (4.2 dB)
4.8 dB (4.5 dB)
0.733 8-ARY
4.8 dB (4.5 dB)
5.2 dB (4.9 dB)
VersaFEC-2 Short Block
CODEC
16-ARY
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-4
10
-8
0.586 16-ARY
4.8 dB (4.5 dB)
5.3 dB (5.0 dB)
0.611 16-ARY
5.0 dB (4.7 dB)
5.4 dB (5.1 dB)
0.635 16-ARY
5.3 dB (5.0 dB)
5.6 dB (5.3 dB)
0.660 16-ARY
5.5 dB (5.2 dB)
5.8 dB (5.5 dB)
10
-4
10
-8
0.684 16-ARY
5.7 dB (5.4 dB)
6.2 dB (5.9 dB)
0.708 16-ARY
6.1 dB (5.8 dB)
6.5 dB (6.2 dB)
0.733 16-ARY
6.2 dB (5.9 dB)
6.6 dB (6.3 dB)
0.757 16-ARY
6.7 dB (6.4 dB)
7.1 dB (6.8 dB)
10
-4
10
-8
0.782 16-ARY
7.0 dB (6.7 dB)
7.5 dB (7.2 dB)
VersaFEC-2 Short Block
CODEC
32-ARY
(With two adjacent carriers, each 7
dB higher than the desired carrier)
10
-4
10
-8
0.660 32-ARY
7.3 dB (7.0 dB)
7.9 dB (7.6 dB)
0.684 32-ARY
7.5 dB (7.2 dB)
8.1 dB (7.8 dB)
0.708 32-ARY
7.7 dB (7.4 dB)
8.2 dB (7.9 dB)
0.733 32-ARY
8.2 dB (7.9 dB)
8.7 dB (8.4 dB)
10
-4
10
-8
0.757 32-ARY
8.4 dB (8.1 dB)
8.9 dB (8.6 dB)
0.782 32-ARY
8.7 dB (8.4 dB)
9.2 dB (8.9 dB)
0.801 32-ARY
9.1 dB (8.8 dB)
9.5 dB (9.2 dB)
0.831 32-ARY
9.5 dB (9.2 dB)
9.9 dB (9.6 dB)
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)
1.3.3 Standard AUPC (Automatic Uplink Power Control)
Parameter
Specification
Operating Mode
Requires Closed Network Framed mode for transport of Eb/No information from remote modem
(EDMAC can be enabled or disabled)
Target Eb/No Range
0 to 14.9 dB at remote demod (default is 4.0 dB)
Max AUPC Range
0 to 9 dB (default is 3 dB)
Monitor Functions
Remote demod Eb/No and Tx power level increase (front panel or via remote control interface)