SDM-9000 Satellite Modem
Maintenance
Rev. 4
6–7
Table 6-3. Conversion to S/N and E
b
/N
0
Chart (16QAM)
(dB)
Code Rate 3/4
Code Rate 7/8
(S+N)/N
S/N
E
b
/N
0
S/N
E
b
/N
0
4.0
1.8
-3.0
1.8
-3.6
4.5
2.6
-2.2
2.6
-2.8
5.0
3.3
-1.4
3.3
-2.1
5.5
4.1
-0.7
4.1
-1.4
6.0
4.7
-0.0
4.7
-0.7
6.5
5.4
0.6
5.4
-0.0
7.0
6.0
1.3
6.0
0.6
7.5
6.6
1.9
6.6
1.2
8.0
7.3
2.5
7.3
1.8
8.5
7.8
3.1
7.8
2.4
9.0
8.4
3.6
8.4
3.0
9.5
9.0
4.2
9.0
3.5
10.0
9.5
4.8
9.5
4.1
10.5
10.1
5.3
10.1
4.7
11.0
10.6
5.9
10.6
5.2
11.5
11.2
6.4
11.2
5.7
12.0
11.7
6.9
11.7
6.3
12.5
12.2
7.5
12.2
6.8
13.0
12.8
8.0
12.8
7.3
13.5
13.3
8.5
13.3
7.9
14.0
13.8
9.1
13.8
8.4
14.5
14.3
9.6
14.3
8.9
15.0
14.9
10.1
14.9
9.4
15.5
15.4
10.6
15.4
9.9
16.0
15.9
11.1
15.9
10.4
16.5
16.4
11.6
16.4
11.0
17.0
16.9
12.1
16.9
11.5
17.5
17.4
12.7
17.4
12.0
18.0
17.9
13.2
17.9
12.5
18.5
18.4
13.7
18.4
13.0
19.0
18.9
14.2
18.9
13.5
19.5
19.5
14.7
19.5
14.0
20.0
20.0
15.2
20.0
14.5
Содержание SDM-9000
Страница 1: ...Part Number MN SDM9000 IOM Revision 4 SDM 9000 Satellite Modem Installation and Operation Manual...
Страница 2: ......
Страница 5: ...8 Mbit s w IDR Figure 1 7 16QAM BER Performance Curves with Reed Solomon Filename T_ERRATA 3...
Страница 8: ......
Страница 27: ...SDM 9000 Satellite Modem Introduction Rev 4 1 5 Figure 1 3 SDM 9000 Block Diagram...
Страница 42: ...Introduction SDM 9000 Satellite Modem 1 20 Rev 4 This page is intentionally left blank...
Страница 64: ...Configuration SDM 9000 Satellite Modem 3 6 Rev 4 JP1 Figure 3 4 Interface PCB AS 3971...
Страница 65: ...SDM 9000 Satellite Modem Configuration Rev 4 3 7 Figure 3 5 Interface PCB AS 4477...
Страница 66: ...Configuration SDM 9000 Satellite Modem 3 8 Rev 4 JP1 JP6 JP7 Figure 3 6 Interface PCB AS 5618...
Страница 70: ...Configuration SDM 9000 Satellite Modem 3 12 Rev 4 Figure 3 7 Nyquist Filter Installation...
Страница 83: ...SDM 9000 Satellite Modem Operation Rev 4 4 9 This page is intentionally left blank...
Страница 87: ...SDM 9000 Satellite Modem Operation Rev 4 4 13 This page is intentionally left blank...
Страница 104: ...SDM 9000 Satellite Modem Operation Rev 4 4 31 This page is intentionally left blank...
Страница 107: ...Operation SDM 9000 Satellite Modem 4 34 Rev 4 This page is intentionally left blank...
Страница 124: ...SDM 9000 Satellite Modem Operation Rev 4 4 51 Figure 4 17 RF Loopback Figure 4 18 IF Loopback...
Страница 133: ...SDM 9000 Satellite Modem Theory of Operation Rev 4 5 5 Figure 5 3 Modulator RF Section Block Diagram...
Страница 150: ...Theory of Operation SDM 9000 Satellite Modem 5 22 Rev 4 Figure 5 6 Interface Block Diagram...
Страница 158: ...Theory of Operation SDM 9000 Satellite Modem 5 30 Rev 4 This page is intentionally left blank...
Страница 167: ...SDM 9000 Satellite Modem Maintenance Rev 4 6 9 WITH NOISE WITHOUT NOISE Figure 6 4 Typical Eye Constellations...
Страница 186: ...Maintenance SDM 9000 Satellite Modem 6 28 Rev 4 This page is intentionally left blank...
Страница 218: ...Options SDM 9000 Satellite Modem A 32 Rev 4 This page is intentionally left blank...
Страница 242: ...Remote Control Operation SDM 9000 Satellite Modem B 24 Rev 4 ref SE_ command...
Страница 254: ...Glossary SDM 9000 Satellite Modem g 6 Rev 4 This page is intentionally left blank...
Страница 256: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...
