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Satellite Internet, as the name suggests, is the use of satellite technology to gain Internet access. Satellite Internet equipment consists of three main parts, the satellite, two modems and coaxial cables that run from the satellite to the modem. The Internet signal begins at the hub of your Internet provider. This signal is sent... more »
Today's world brings us a wealth of options for access to the Internet. Cable, DSL and old-fashioned dial-up are all viable options. Another option that is gaining in popularity is via a satellite connection. A transmission beamed from Earth's orbit to your computer and back again brings the web, chat rooms, e-mail and more to your... more »
Satellite Internet is a type of service where an Internet signal is beamed directly from a satellite straight down into your home. This is different from regular Internet access, where the signal is sent from a source through miles of phone or cable television lines to your computer. A technician simply installs a satellite receiver... more »
One of the many types of broadband Internet access available today is satellite Internet service. While it may be slower than many fiber-optic, cable, or DSL services, it has the great advantage of being able to be used just about anywhere where there is a clear view of the southern sky. In many rural locations, satellite service may... more »
While it is possible to get free satellite Internet access for a short time, there is no way to keep it. Many Internet providers, including satellite Internet providers, will offer a combination of discounted or even free service, equipment and installation for a limited period only. After this time period is up, you are subject to... more »
Streaming Internet radio provides an infinitely varied medium for listening to your favorite...
More than half of United States residents live in parts of the country where high-speed Internet is not available. A 2008 study by the Pew... more »
The Internet is the primary source of information for many people. Access to the Internet, however, is still a challenge for many. Internet... more »
WildBlue is a satellite-based Internet service provider. While satellite Internet is steadily seeing improvement, there are still factors to take... more »
A satellite Internet connection offers users many advantages that can increase their satisfaction with this kind of service. After using it for... more »
There are still many rural areas in the country that are out of the reach of modern broadband Internet technologies, such as fiber optic, cable or... more »
Satellite Internet services are used in locations where terrestrial Internet access is not available and also for users who move frequently.
Broadband Internet access via geostationary satellite is available almost worldwide, including vessels at sea and mobile land vehicles. Similar, but slower Internet service is also available through Low Earth Orbit (LEO) satellites, however their coverage areas also include the polar regions at extreme latitudes, making them truly global.
End users must be aware of the different types of satellite communication systems and the technical issues involving each, such as latency and signal loss due to precipitation, in order to make informed decisions on which system would serve them best.
Mechanics and limitations of satellite communication
Signal latency
Latency is the delay between requesting data and the receipt of a response, or in the case of one-way communication, between the actual moment of a signals broadcast and the time received at its destination. Compared to ground-based communication, all geostationary satellite communications experience high latency due to the signal having to travel to an altitude of above sea level (from the equator) out into space to a satellite in geostationary orbit and back to Earth again. This latency problem with satellite communications can be mitigated with TCP acceleration features that shorten the round trip time (RTT) per packet by splitting the feedback loop between the sender and the receiver. Such acceleration features are present in recent technology developments embedded in new satellite Internet services like Tooway"Tooway-brochure">.
The signal delay can be as much as 250 milliseconds to 900 milliseconds (one way), which makes this service unusable for applications requiring real-time user input, such as online games or remote surgery. This delay can be irritating with interactive applications, such as VoIP, videoconferencing read more at » http://en.wikipedia.org/wiki/Satellite+Internet+access
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