Hughes 9250, Быстрая установка, Страница: 8 / 10

8 3500145-0001 Revision A
Step I: Connecting to the Internet
After power is applied, the Hughes 9250 terminal and antenna begin their startup sequence. The tracking
antenna begins its search for the BGAN satellite. The antenna motors may be heard during this time.
Refer to the Hughes 9250 Terminal User Guide included on the CD to learn more about how to use the
Hughes 9250 Land Mobile Satellite Terminal.
Refer to the Hughes 9201 Terminal User Guide for instructions on how to connect a PC or Mac to the
terminal. However, note the following differences/limitations between the 9201 and 9250 for internet
connection and performance:
• The antenna pointing procedure is bypassed. The Hughes 9250 terminal automatically registers with
the network after the tracking antenna acquires the satellite signal.
•
The 9250 operates as a class-2 modem, that is, streaming class connection is limited to a maximum
128 kbps data rate.
•
Only “best effort” performance can be expected under moving conditions due to the higher probability
of obstruction of satellite signal and limitations of the current BGAN system.
• "Best effort" performance can also be expected with look angles lower than 20 degrees.
•
Signal outages of more than 3 seconds cause circuit switched calls to drop and packet switched
sessions to pause. User intervention may be required to reactivate connections for longer outage
durations.
•
Beam-to-beam handover is not supported by the network until BGAN-X is completed.
•
The 9250 is fully BGAN-X Class 11 compatible with a software upgrade.
Customer support
Contact Hughes at (858) 452-4658
Coverage Map
The Hughes 9250 performs best in areas where the antenna elevation angle is 20 degrees or higher. Lower
elevation angles increase the probability of signal outages caused by trees, buildings and hilly terrain and
may severely impact the usability on the move. See the figure below for a rough estimate of elevation in
your location.
Note: The
antenna must have line of sight to the BGAN satellite to lock onto the
satellite signal.