1.3
How the System Works
The TracNet 3.0 system offers two different methods of receiving
Internet data: broadband service and narrowband service.
Broadband Service
•
Internet data received by: TracVision antenna
•
TracVision antenna tracks: Broadband satellite
How Broadband Service Works:
1. When you visit a web site, download a file, or e-mail a
message, the TracNet server relays your request to the
satellite broadband network operations center using
the Tracphone MPDS or the GPRS modem connection.
2. The requested web page or file is retrieved from the
Internet and is broadcast via the broadband satellite.
3. Your TracVision antenna receives this satellite
downlink and delivers the web page or file to the
TracNet server, which then relays the data to your
networked computer.
Figure 1-2
How Broadband Service Works
Note that while you are using the broadband service, the
TracVision antenna is tracking the broadband satellite. Therefore,
unless the broadband satellite is also the satellite you use to
receive television signals, you will not be able to watch TV while
you’re online using the broadband service.
Introduction
54-0272-01
5
Maps showing the coverage areas
of the broadband satellites can be
found in
Appendix B on page 63
.
TracVision
Antenna
Broadband Satellite
Internet
TracNet Server
Satellite TV System
Networked Computer
Only if broadband satellite
is the same satellite
used to watch TV.
GPRS Modem or
Tracphone Antenna
