Ever wondered why we have satellite TV? I know that I, especially when we already have available terrestrial television or broadcast. They both seem very similar, that the only difference is that with satellite you get a lot more choice of channel. Of course there is also cable TV, a fierce competitor for both services, but in this article I'm going to stick to satellite television.
The local terrain and the curvature of the Earth limit terrestrial TV signals in the area that they can server. Both terrestrial and satellite TV use essentially the same kind of signals but by the signal from above, one satellite beaming can serve a larger area. This is the reason why satellite TV has become popular in remote areas where it is not practical to serve people with an aerial land based and certainly not economic to cables to those areas.
Using satellites for broadcasting the TV signals, solves the problem. A job more than 22,000 miles above the ground turning them around the Earth once every 24 hours, which is the same time as it takes the planet to make a full rotation. Therefore, the satellite will always remain above the same spot on the ground and it is said that in geostationary orbit. Because the satellite very high in the sky is the transmission of the signal reached large numbers of customers and people who in normal remote and inaccessible places are are able to benefit. The satellites not only send directly back to the ground, but also in communicating with each other, they make a huge network to the largest possible number of people to distribute. Because the satellite is geostationary, you must have only one time, set up your TV satellite dish in the best position to receive a signal. You should not ever have to move it again.
It is possible to create a dish antenna on property you set up and receives signals from a number of different satellites, often for free. To do this you need a court that can be moved to the satellite you wish to receive signals from. Some satellites are of interest to amateurs not even geostationary so that you can only get signals from them for a part of the day and the dish be able to keep track of the satellite must as it moves across the sky. Most people, however, want to receive signals for entertainment with the least amount of fuss and thus they subscribe to the paid ' Direct Broadcast Satellite (DBS) services such as DirecTV, dish or Sky (UK). The premium channels streamed from this satellite networks are encrypted so you need special equipment to view them and you pay for the encryption key to unlock the decoder.
Satellite TV companies make money from their networks in a variety of ways. There are three methods that today in general use.
Advertising
Organizations pay the network for the transmission of advertisements. We all hate it but it pay for our entertainment, or a part of the at least.
Subscriptions
A monthly fee for the right to view encrypted channels that are to be able to pay. In general your subscription you will receive a smart card that is programmed with the decoding information and inserted in your receiver box.
TV Licence Fee
If you are in the United Kingdom and you equipment that is suitable for receiving TV signals than the law determines that you have to pay for a TV licence. Note that you need to use of the equipment; you just have to possess. The money from the licence fee to pay for the British Broadcasting Corporation or BBC, and in return we didn't see any advertising or encryption on all channels BBC. This was a good idea in the early days of radio and TV and it helped to produce and maintain high standards of broadcasting all over the world. However, my personal opinion now is that the license fee is nothing more than yet another tax that we have to pay and I feel that the BBC must begin to stand on it's own two feet. I doubt that will happen anytime soon though.
If a broadcaster only advertising used to pay for their service than you can receive and view of the signals without payment or subscription. If you are in the United Kingdom still lives should you pay the license fee though.
There are five components that are needed to the programme makers and satellite television customer to link:
Distribution
The DBS provider makes none of the programs themselves, they pay for the right to them via satellite television broadcast. They act as a ' middleman ' between the ' programming resources "or channels and you.
Satellite TV Provider
Signals from the broadcast centre sources are received by the service provider and forwarded to the network of satellites in orbit.
Satellites
The signals are received by the satellite network and passed back to Earth.
Receipt of equipment
Normally provided by the DBS that you receive the signal of the above satellite equipment. A receiving dish should be professionally installed somewhere on your property.
Decode and display
A box near your TV will the received signal and decoding of your chosen channels in a form that you can view.
I bet you never realized that there is so much involved in satellite TV. It is indeed a miracle of technology and provides us with high quality to date entertainment from all over the world. Television technology has come a long way in such a short period of time.
Steve is a software engineer and loves movies on his satellite television viewing. He is also the webmaster on satellite TV Keep in touch with what's new in http://www.sattelite-television.thegrandfatherclock.com is
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