How Does a Satellite TV System Work?

A satellite TV system is a wireless system that delivers television programming to your home via a radio signal. It works very much like a broadcast television station, though it can deliver far more channels than you’d find on your local terrestrial stations.

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Programming is received by satellite TV providers where the programming is digitised and encrypted at the provider’s broadcast centres, and then uplinked to the satellites for transmission.

The satellite signal comes back to Earth and is received by your receiver, either a set top box or a tuner built into your television. Your receiver decodes the digital satellite signal and transmits it to your TV. Many of the channels are unencrypted and available for free-to-air or pay television, but some channels are encrypted and require a monthly subscription fee in order to watch them. When you need help with your satellite or TV aerial installation Tewkesbury, contact

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Your receiver has two important jobs: it tracks your pay-per-view programme usage and periodically phones a computer at the provider’s headquarters to send billing information. The receiver also translates the digital MPEG-2 signal into an analog NTSC format that a standard television can recognise.

Your satellite dish is a unique antenna, with a parabolic surface that focuses energy into a relatively narrow beam. The dish is positioned at the point where the satellite’s transmitting antennas are pointed toward the orbiting satellite. The curved dish surface reflects energy from the horn, similar to how a concave mirror focuses light.

Author: Brielle Walker

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