SDM-300A Satellite Modem
Operation
Rev. 4
3–95
S AT ELLIT E M O T IO N AN D O R BITAL IN C LIN AT IO N
S AT E LLIT E
N O M IN A L
P O S IT IO N
N
S
G E O -S YN C H R O N O U S
E Q U ATO R IA L O R B IT
G E O -S Y N C H R O N O U S
IN C LIN E D O R B IT
SAT ELLIT E
N /S
M O T IO N
N
S
A
B
C
A
A S S TAT IO N -K E E P IN G F U E L
B EC O M E S E XH A U S T E D , T H E N /S
S TAT IO N -K E E P IN G IS LIM IT E D
T O P R O D U C E A M O R E IN C LIN E D
O RB IT, T H U S P R O LO N G IN G T H E
LIF E O F T H E S AT E LLIT E .
A S ATE LL IT E IS M AIN TAIN E D AT A N
A S SIG N ED G E O S TATIO N A RY
LO C AT IO N TH R O U G H T H E U S E O F
G R O U N D C O M M A N D A D JU S T M E N T S
TO IT S N /S A N D E /W LO C AT IO N . T H IS
P R O C E S S , K N O W N A S SAT EL LIT E
S TAT IO N -K E E P IN G , IS U S E D T O K E EP
T H E S ATE LLIT E D R IF T W IT H IN
C E RTAIN B O U N D A R IE S .
T H E N /S M O T IO N C H A N G E S T H E
PATH F R O M T H E S ATE LLIT E TO T H E
E A RT H , R E S U LT IN G IN F R E Q U E N C Y
C H A N G E S K N O W N A S TH E D O P P LE R
E F F E C T.
Figure 3-33. Doppler Shift
Содержание SDM-300A
Страница 1: ...Part Number MN SDM300A IOM Revision 4 SDM 300A Satellite Modem Installation and Operation Manual...
Страница 33: ...Introduction SDM 300A Satellite Modem 1 14 Rev 4 This page is intentionally left blank...
Страница 36: ...SDM 300A Satellite Modem Installation Rev 4 2 3 Figure 2 1 Installation of the Mounting Bracket...
Страница 57: ...Operation SDM 300A Satellite Modem 3 4 Rev 4 This page is intentionally left blank...
Страница 78: ...SDM 300A Satellite Modem Operation Rev 4 3 25 This page is intentionally left blank...
Страница 96: ...SDM 300A Satellite Modem Operation Rev 4 3 43 This page is intentionally left blank...
Страница 101: ...Operation SDM 300A Satellite Modem 3 48 Rev 4 This page is intentionally left blank...
Страница 118: ...SDM 300A Satellite Modem Operation Rev 4 3 65 This page is intentionally left blank...
Страница 169: ...Theory of Operation SDM 300A Satellite Modem 4 18 Rev 4 This page is intentionally left blank...
Страница 176: ...SDM 300A Satellite Modem Maintenance Rev 4 5 7 WITH NOISE WITHOUT NOISE Figure 5 4 Typical Eye Constellations...
Страница 189: ...Maintenance SDM 300A Satellite Modem 5 20 Rev 4 This page is intentionally left blank...
Страница 200: ...SDM 300A Satellite Modem Options Rev 4 A 11 Figure A 2 D I with Asynchronous Overhead Data Flow...
Страница 205: ...Options SDM 300A Satellite Modem A 16 Rev 4 Figure A 3 E1 Framing Formats...
Страница 206: ...SDM 300A Satellite Modem Options Rev 4 A 17 Figure A 4 T1 Framing Formats...
Страница 237: ...Options SDM 300A Satellite Modem A 48 Rev 4 Figure A 10 IDR Interface Block Diagram...
Страница 241: ...Options SDM 300A Satellite Modem A 52 Rev 4 Figure A 11 IBS Interface Block Diagram...
Страница 257: ...Options SDM 300A Satellite Modem A 68 Rev 4 CBA Figure A 19 Reed Solomon Codec Installation...
Страница 260: ...SDM 300A Satellite Modem Options Rev 4 A 71 CBA Figure A 20 Overhead Interface PCB Installation...
Страница 265: ...Options SDM 300A Satellite Modem A 76 Rev 4 Figure A 24 8 Channel Multiplexer Installation...
Страница 273: ...Options SDM 300A Satellite Modem A 84 Rev 4 Figure A 26 Flex Mux Multiplexer Installation...
Страница 275: ...Options SDM 300A Satellite Modem A 86 Rev 4 This page is intentionally left blank...
Страница 330: ...SDM 300A Satellite Modem Remote Control Operation Rev 4 B 55...
Страница 362: ...Specifications SDM 300A Satellite Modem C 32 Rev 4 Figure C 7 8PSK BER Specification Curves 1544 kbit s...
Страница 366: ...Specifications SDM 300A Satellite Modem C 36 Rev 4 1 1 Rate Specification Figure C 9 Uncoded 1 1 BPSK QPSK and OQPSK...
Страница 388: ...Specifications SDM 300A Satellite Modem C 58 Rev 4 This page is intentionally left blank...
Страница 392: ...Glossary SDM 300A Satellite Modem g 4 Rev 4 This page is intentionally left blank...
Страница 398: ...Index SDM 300A Satellite Modem i 6 Rev 4 This page is intentionally left blank...