There is a long, very scientific answer to the question, how does satellite TV work. There is also a shorter version that is way more interesting. We're going to go with the shorter version and apologize in advance to the scientific types who will cringe when they read this. As far as most people thinking that dishes are new, well they are not. The first satellite for TV was shot into space in'62.
When it all started there were not a lot of satellites up and most people who wanted to get satellite television had huge gray satellite dishes planted in their back yards. There are still some of these around. They are usually about nine feet in diameter and when somebody wants to move the dish to get a different country's programs it is a group effort. They originally came with remote controls, but those were lost several years ago so the dish gets turned manually.
The really great thing about these dishes, besides the fact that it was a great excuse not to mow half the back yard, was that you could get programs from other countries. For instance, someone in California could get programming from Canada. Or, when the satellites shifted you could get programs from other countries depending on which satellite you landed on.
So, as the popularity of satellite televisions grew they started shooting more satellites up that had transponders on them. They called these geostationary satellites because they are orbiting at the same speed as the earth so they aren't really moving anymore than we are. This made reception easier to achieve and if you knew where a satellite was you could point the nine foot dish at the satellite and watch a different countries stuff. It was still pretty cool.
Well, nine foot dishes just have never really caught on as a yard ornament in cities and they wanted satellite television also. So, satellite providers came up with little'" dishes that could be put just about anywhere on a house with a clear southern exposure and started beaming programs from all of the satellites to the dishes. No more calling the neighbors to move the dish, just a little dish stuck on the side of a building that was easy to move and 500 or so channels to choose from.
Problem was that most city dwellers don't have an unobstructed view of anything. So, the next advancement was found in spot beams. Spot beams provide the answer to many problems. The satellite shoots a signal to the spot beam. The spot beam shoots a signal to the dish. The dish shoots the signal to the receiver on the television.
The system runs on radio signals that are sent digitally encoded. The guys figured out that they could send more channels through the same bandwidth using this strategies. This is why over five hundred channels are available at any time, twenty-four hours a day. Improvements and advancements continue to be made that are making the dishes smaller and more powerful. It's actually amazing how the whole system works.
So, for unscientific types that were wondering how does satellite TV work, there you have it. A really complex system that works really well.
When it all started there were not a lot of satellites up and most people who wanted to get satellite television had huge gray satellite dishes planted in their back yards. There are still some of these around. They are usually about nine feet in diameter and when somebody wants to move the dish to get a different country's programs it is a group effort. They originally came with remote controls, but those were lost several years ago so the dish gets turned manually.
The really great thing about these dishes, besides the fact that it was a great excuse not to mow half the back yard, was that you could get programs from other countries. For instance, someone in California could get programming from Canada. Or, when the satellites shifted you could get programs from other countries depending on which satellite you landed on.
So, as the popularity of satellite televisions grew they started shooting more satellites up that had transponders on them. They called these geostationary satellites because they are orbiting at the same speed as the earth so they aren't really moving anymore than we are. This made reception easier to achieve and if you knew where a satellite was you could point the nine foot dish at the satellite and watch a different countries stuff. It was still pretty cool.
Well, nine foot dishes just have never really caught on as a yard ornament in cities and they wanted satellite television also. So, satellite providers came up with little'" dishes that could be put just about anywhere on a house with a clear southern exposure and started beaming programs from all of the satellites to the dishes. No more calling the neighbors to move the dish, just a little dish stuck on the side of a building that was easy to move and 500 or so channels to choose from.
Problem was that most city dwellers don't have an unobstructed view of anything. So, the next advancement was found in spot beams. Spot beams provide the answer to many problems. The satellite shoots a signal to the spot beam. The spot beam shoots a signal to the dish. The dish shoots the signal to the receiver on the television.
The system runs on radio signals that are sent digitally encoded. The guys figured out that they could send more channels through the same bandwidth using this strategies. This is why over five hundred channels are available at any time, twenty-four hours a day. Improvements and advancements continue to be made that are making the dishes smaller and more powerful. It's actually amazing how the whole system works.
So, for unscientific types that were wondering how does satellite TV work, there you have it. A really complex system that works really well.
About the Author:
Learn more about Satellite TV Deals. Stop by Sam Bousaks's site where you can find out all about Dish Network Deals.
Aucun commentaire:
Enregistrer un commentaire