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Friday, April 17, 2009

Satellite internet in rural area


How do you access the Internet other than dial-up if you reside too faraway from a service provider. Then Satellite Internet access might be alternative. It's ideal for rural Internet users who want broadband access.

Satellite Internet does not use any physical connectivity. But it uses a satellite dish for upload/download data communications. Speed of upload is around one-tenth of the 500 kbps of the download speed. Satellite systems are with ten times faster than a normal internet connection.

Two-way satellite Internet consists of:

1) Approximately a two-foot by three-foot dish
2) Two modems for uplink and downlink
3) Coaxial cables between dish and modem

The prime condition is a clear view to the south, as the orbiting satellites are over the equator area, same as satellite TV, trees and heavy rains can have an effect on reception of the signals.

Two-way satellite Internet uses Internet Protocol (IP) multicasting technology, in which up to 5,000 channels of communication can concurrently be served by a sole satellite. IP multicasting sends data from one point to many points at the same time in compressed format. The data size and the bandwidth can be reduced by compression.

The satellite data downlink is same as the normal terrestrial link, apart from the satellite transmits the data to local PC via the same dish that would allow you to obtain a Pay-Per-View television program.

So, in a rural area, satellite Internet may be for you!
 
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