What is a Satellite Television Network?

Ever since the introduction of broadcasting services there has been rapid progress in the technology of transmission and different networks. From radio broadcast to the arrival of television it has been constant advancement in transmission medium, quality and overall technology regarding its overall effects on audio and visual qualities and services provided by different companies. One such advance network is satellite television network, which has grown over the years more rapidly than anything else regarding broadcasting technology.
A satellite television network consists of satellites situated on earth stations for transmission of information to satellite above the earth at a specified height and another on the receiving end to get the signal and deliver it for consumer service. Satellite which sends the transmission to satellite makes an uplink and the one which receives the signal back at consumer`s backyard makes a downlink. Uplink and downlink frequencies are different in each case. Satellite system which processes the signal taken from earth station is known as transponder. These frequencies work in the microwave frequency range, which is most common for satellite communications as well.
There are two most common bands used in satellite television networks. One is C-band and other is Ku-band. In C band normally uplink and downlink frequencies are somewhere between 4-8 GHz and for Ku band this range is somewhere between 12-18Ghz. Normally a Ku band satellite can have 32 transponders and 24 for C band satellites. Transponders normally have their bandwidths somewhere between 27MHZ to 50MHZ.
There satellite systems are carried in many countries so it is obvious that there will be many floating in the space. One thing worth mentioning here is that each geo-stationary satellite for C-band transmission can have 2 degree space from adjacent satellite, while on the other hand each Ku band can have 1 degree of space between two adjacent satellites. This makes C band to have a total of 180 and Ku band to have 360 geo stationary satellites around the earth.
Now, these satellite broadcasting systems rely on different dish antennas placed on different destinations to be compatible with the transmission. Usually a big dish with a big diameter antenna, from 9 to 12 meters in size, is directed towards the satellite for transmission of the signal. The transmission antenna is kept bigger because this helps to direct the satellite quite accurately and transmit the signal in the perfect direction. And downlink dish antenna for satellite signal receiver is smaller in size and on most part set box, which receive signal from dish, are used to connect them to personal televisions.
The emergence of satellite television has broadened the choice of channels and many companies offer different packages to have different solutions for their packages. The wireless system of broadcasting is considered to be more reliable where one does not have to deal with the problems aroused by the wired systems, where the quality of reception is often affected by the tempering of wires and their getting rotten by natural variations.

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