APPENDIX A - SYSTEM OVERVIEW
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Nera WorldPro 1000
A-2
USER GUIDE
Nera WorldPro 1000
A-2
USER GUIDE
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System satellites
The satellites are positioned in a geostationary orbit
above the equator at approximately 35700km alti-
tude.
See figure A-2.
In geostationary orbit, each satellite moves at the
same rate as the earth, and so remains in the same
relative position to the earth.
The satellites provide 99% landmass coverage.
The Nera WorldPro 1000 can communicate via the
three satellite Ocean Regions:
F1
Indian Ocean Region
F2
Atlantic Ocean Region
F3
Pacific Ocean Region
The coverage area of the satellites for Nera World-
Pro 1000 (BGAN) is shown on the
Satellite coverage
map
, see earlier in this manual. Communication is pos-
sible in areas marked with brown and reddish brown
(light grey and grey when printed in black), indicating
spotbeam coverage.
Transmission frequencies
The Inmarsat BGAN terminals operate in the follow-
ing L-band frequencies:
MES
transmission
frequencies:
1626.5 MHz - 1660.5 MHz
MES
receiving
frequencies:
1525.0 MHz - 1559.0 MHz
SAS (Satellite Access Station)
Two SAS stations cover both the IOR and AOR-E satel-
lite regions.
See figure A-3.
The SASs provide the interface to the international
networks for telephony and data: PSTN (Public
Switched Telephone Networks), PSDN (Packet
Switched Data Networks) and Mobile Telephone
Networks.
Figure A-2
Satellite positions.
Содержание WorldPro 1000
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Страница 9: ...INTRODUCTION cont d Nera WorldPro1000 USER GUIDE Figure 1 Nera WorldPro1000 functions and services...
Страница 10: ...INTRODUCTION cont d Nera WorldPro1000 10 USER GUIDE Figure 2 Nera WorldPro1000 identification...
Страница 14: ...Nera WorldPro1000 14 USER GUIDE Satellite coverage map OPERATION...
Страница 15: ...OPERATION cont d Nera WorldPro1000 15 USER GUIDE Indicator panel...
Страница 30: ...OPERATION cont d Nera WorldPro1000 30 USER GUIDE Overview...
Страница 31: ...OPERATION cont d Nera WorldPro1000 31 USER GUIDE GPS status...
Страница 32: ...OPERATION cont d Nera WorldPro1000 32 USER GUIDE Data connection...
Страница 33: ...OPERATION cont d Nera WorldPro1000 33 USER GUIDE LaunchPad help...
Страница 34: ...OPERATION cont d Nera WorldPro1000 34 USER GUIDE Terminal log...
Страница 35: ...OPERATION cont d Nera WorldPro1000 35 USER GUIDE Audio and lights setup...
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