You may have heard of the third option that is satellite Internet. It is often times seen as a welcome alternative to DSL or cable Internet providers. You may know the basic operation of satellite Internet-namely that an orbiting satellite sends signals to your home computer. However, have you ever really stopped to consider the science of satellite Internet and how this technology is possible?
Satellite Internet does not require a phone connection to work, which makes it available throughout the world, whether you live in a suburban neighborhood close to the city or a rural area in the boondocks. Instead, the satellite company uses a satellite dish for two-way data communications. The two-way communication refers to both upload and download; this is what you do whenever you submit or receive text or graphical information. The upload speed measures about 1/10 of the 500 kbps download speed. The speed of satellite Internet connections are comparable to that of terrestrial Internet and far superior to that of dial up.
Two-way satellite Internet includes some important equipment such as a home satellite dish, which measures about 2'x3', two modems (one for uplink and one for downlink) and coaxial cables that help facilitate communication between dish and modem. Now bear in mind that satellite Internet does require a modem for operation. It's just not the same type of modem configuration that traditional DSL, dial up or cable modems use.
Homeowners or apartment dwellers that hope for optimal performance should give their home satellite dish a clear view of the southern sky, since the satellite in orbit will be located over the equator area. This means that satellite Internet may not be available in some cluttered locations that have lots of greenery and other obstructions. For example, some apartment complexes feature lots of trees and plants to complement their garden theme, and may even have sunken levels of landscaped ground. If a clear view of the southern sky is not available, optimal performance from the satellite Internet connection will be difficult.
Two-way satellite Internet will be operating via Internet Protocol multicasting technology. This refers to a process of communication that allows as many as 5,000 channels to be served at the exact same time by one orbiting satellite. The multicasting unit will send data from one point to the next, and onward simultaneously. This data will be transmitted quickly via compressed format. Why? Compression reduces the size of the data and requires less bandwidth. This type of multicasting is not available with terrestrial Internet providers, since they have bandwidth limitations that prevent this colossal of an achievement.
Bear in mind that this article refers to traditional satellite two-way Internet. There are some satellite services that actually offer a sort of hybrid service, where you use a traditional dial-up or cable modem connection for uploading content to the Internet. In this case, the satellite data downlink operates like a terrestrial link, but the satellite is used for transmitting data to your computer, just as you would operate a satellite-based PPV feature. Most companies offer a two-way connection with no need of a cable or dial up connection.
As America's leading satellite internet service provider, Hughes Net delivers broadband speeds up to 50x faster than dial-up. Hughes Net internet service is available anywhere in the contiguous U.S. and with lease options and free standard installation, getting started is easy and affordable.
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