COBHAM SAILOR XTR GX-R2, Руководство по установке

Страница: 12 / 176

98-175666-C 1-1
Chapter 1
Introduction
1
This chapter has the following sections:
• SAILOR XTR GX-R2 system
• Part numbers and options
1.1 SAILOR XTR GX-R2 system
The SAILOR XTR GX-R2 is a unique stabilized maritime GX antenna system operating in
the Ka-band (17.7 to 30 GHz). It is used with the Global Xpress service from Inmarsat,
delivering consistent high-performance download speeds of up to 50 Mbps and 5 Mbps
over the uplink. The following figure shows the coverage map of the GX service.
The system requires a single 50 Ohm coaxial cable to provide the antenna (ADU) with
both DC power, data and control information. The radome does not have to be
removed neither before nor after the installation. To protect the ADU the built-in
motors act as brakes during transport and when the ADU is not powered. You can
access the SAILOR XTR GX-R2 remotely and make in-depth performance analysis using
the built-in web interface.
The following figures show the SAILOR XTR GX-R2 system.
Figure 1-1: GX coverage map
jÄÇüà‹õÇü¹èøº¯á¯ø‹ÚÇá¹èøà‹ĆÇèáõċøõèü¯üèáÚĝ‹á«áèºċ‹ø‹áĆ¯¯ÇüºÇĖ¯á蹋¤¤ċø‹¤ĝèøĨĆá¯üü¹èø‹õ‹øĆǤċڋøċü¯ůèĖ¯ø‹º¯Çüüċ£Ó¯¤ĆĆè¤Ä‹áº¯‹Ć‹áĝĆÇà¯ů(Ú裋ڀõø¯üü¤èĖ¯ø‹º¯F‹ĝIJİIJİů
0°
10°
20°
30°
40°
50°
60°
70°
80°
90°
10°
20°
30°
40°
50°
60°
70°
80°
90°
0° 20° 40° 60° 80° 100° 120° 140° 160° 180° 20° 40° 60° 80° 100° 120° 140° 160° 180°
Extendable Global Xpress
coverage via steerable beams
GX1 GX4 GX3 GX2 GX5
Global Xpress network available
over at least 99% of this area