Table B-7. Versafec-2 Modcod Set - Short Block - Comtech EF Data CDM-570A Installation And Operation Manual

Code
ModCod Mod
Rate
00 BPSK 0.489599
01 QPSK 0.489599
02 QPSK 0.537459
03 QPSK 0.586319
04 QPSK 0.610749
05 QPSK 0.635179
06 QPSK 0.659609
07 QPSK 0.684039
08 QPSK 0.732899
09 8-ARY 0.521173
10 8-ARY 0.537459
11 8-ARY 0.561889
12 8-ARY 0.586319
13 8-ARY 0.610749
14 8-ARY 0.635179
15 8-ARY 0.659609
16 8-ARY 0.684039
17 8-ARY 0.708469
18 8-ARY 0.732899
19 16-ARY 0.586319
20 16-ARY 0.610749
21 16-ARY 0.635179
22 16-ARY 0.659609
23 16-ARY 0.684039
24 16-ARY 0.708469
25 16-ARY 0.732899
26 16-ARY 0.757329
27 16-ARY 0.781759
28 32-ARY 0.659609
29 32-ARY 0.684039
30 32-ARY 0.708469
31 32-ARY 0.732899
32 32-ARY 0.757329
33 32-ARY 0.781759
34 32-ARY 0.801303
35 32-ARY 0.830619
Notes:
1. *Typical Es/Lo values are shown – guaranteed values are 0.3 dB higher.
2. E /N (SNR) is used in place of E
s 0
defined as:
E
s
FEC (Forward Error Correction) Options
CDM-570A/570AL Satellite Modem with Optional Packet Processor
Table B-7. VersaFEC-2 ModCod Set – Short Block
Typical *
Es/No
Spectral Block
Efficiency Size (SNR), for
(bps/Hz) (bits)
BER = 1 x 10
(dB)
0.489 800
0.977 1600
1.075 1760
1.173 1920
1.221 2000
1.270 2080
1.319 2160
1.368 2240
1.466 2400
1.564 2560
1.612 2640
1.686 2760
1.759 2880
1.832 3000
1.906 3120
1.979 3240
2.052 3360
2.125 3480
2.199 3600
2.345 3840
2.443 4000
2.541 4160
2.638 4320
2.736 4480 10.3
2.834 4640 10.7
2.932 4800 11.0
3.029 4960 11.6
3.127 5120 12.2
3.298 5400 12.8
3.420 5600 13.1
3.542 5800 13.4
3.664 6000 14.0
3.787 6200 14.4
3.909 6400 14.8
4.007 6560 15.2
4.153 6800 15.8
/N , a convention for comparing ACM ModCods. SNR is
b 0
/N = E /N + 10 * 10
0 b 0
Latency
(@ X
Data Rate,
Kbps/Mbps CCM Mode
-8
(ms))
(kbps)
-0.2 16 @ 128 kbps
2.3 30 @ 128 kbps
2.8 33 @ 128 kbps
3.4 36 @ 128 kbps
3.7 37 @ 128 kbps
3.9 38 @ 128 kbps
4.2 39 @ 128 kbps
4.5 41 @ 128 kbps
5.2 43 @ 128 kbps
5.6 46 @ 128 kbps
5.9 47 @ 128 kbps
6.2 49 @ 128 kbps
6.4 51 @ 128 kbps
6.6 53 @ 128 kbps
6.9 55 @ 128 kbps
7.2 57 @ 128 kbps
7.5 59 @ 128 kbps
7.8 61 @ 128 kbps
8.3 32 @ 256 kbps
8.7 34 @ 256 kbps
9.0 35 @ 256 kbps
9.3 37 @ 256 kbps
9.7 19 @ 512 kbps
20 @ 512 kbps
21 @ 512 kbps
22 @ 512 kbps
22 @ 512 kbps
23 @ 512 kbps
12 @ 1 Mbps
12 @ 1 Mbps
13 @ 1 Mbps
13 @ 1 Mbps
14 @ 1 Mbps
14 @ 1 Mbps
7 @ 2 Mbps 1001.6
7 @ 2 Mbps 1038.3
(Spectral Efficiency)
log
B–12
Min. Max.
Min Sym
Data Rate, Rate, ACM
Mode
CCM Mode
(ksps)
(Mbps)
18.1 0.490 37
36.2 0.979 37
39.8 1.075 37
43.4 1.173 37
45.2 1.221 37
47.0 1.270 37
48.8 1.319 37
50.6 1.368 37
54.2 1.466 37
93.8 1.564 60
96.7 1.612 60
101.1 1.686 60
105.5 1.759 60
109.9 1.832 60
114.3 1.906 60
118.7 1.979 60
123.1 2.000 60
127.5 2.000 60
131.9 2.000 60
234.5 2.000 100
244.3 2.000 100
254.1 2.000 100
263.8 2.000 100
273.6 2.000 100
283.4 2.000 100
293.2 2.000 100
302.9 2.000 100
312.7 2.000 100
824.5 2.000 250
855.0 2.000 250
885.6 2.000 250
916.1 2.000 250
946.7 2.000 250
977.2 2.000 250
2.000 250
2.000 250
MN-CDM570A
Revision 5
Max Sym
Rate, ACM
Mode (Msps)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.9
0.9
0.9
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5