|
|
|
2006-09-18 20:51:13
|
 |
Article by Keith Londrie |
 |
|
What is a satellite?
Satellite is an object that orbits another object. There are many kind of satellites used for many purposes. For communication and entertainment artificial communication satellites are used. The orbits that are in use for satellites are geosynchronous orbits, low Earth orbits, and Molniya orbits.
What is comsat?
It is an artificial communication satellite. When compared to the other two orbits the geosynchronous orbits are best suited as it can hold a ground-based antenna, which face the satellites. For television ground antenna are essential. Arthur Clarke first founded this method in 1929.
There are different satellite reception modes. To name a few there are Direct broadcast satellite and Television receive only satellite. Direct to home or direct broadcast satellite or mini dish system, is a recent development in the world of communication satellite. The direct broadcast satellite is a completely closed system and it uses proprietary reception equipment. Direct broadcast satellite uses the Ku band and sometimes it can run in C-band satellites. For the functioning of direct broadcast satellite system, encryption based on proprietary reception equipment and proprietary transport stream encoding is required. Direct broadcast satellite uses a smart card as part of the decryption system, which keeps a check on the authorization of subscribers.
Television receive-only, or TVRO, is open standard equipment and referred to as big dish satellite. Television receive-only is a well designed to receive for both television and radio as analog and digital satellite. Television receive-only uses both C-band and Ku-band transponders on the same level. Television receive-only or big dish satellite, as the name suggests uses larger satellite dish antennas. Additional receiver boxes are also used for receiving different types of digital satellite signal reception.
The digital revolution from space is altering the way that we receive information. The more advanced form of digital broadcast system is set-top box. Set-top box is a device, which receives signals, decode digital broadcast, and makes the television user interface friendly to the Internet. Its one of the main feature is to enable analog television to receive digital broadcasts.
Overall, there is a large improvement in the evolution of television relay system. That is from broadcasting through cable to broadcasting via satellites. There was again an evolution in the satellite system itself. For broad casting via satellite system, large dish were in use. Then came the mini dish to receive signal. The mini dish is sophisticated and easy to use system where tuning and maintenance was lot more easy than the traditional dish.
|
|
|
Related Articles |
|
And the Battle of Sky Versus Virgin Continues (Popularity:  ): In a battle of broken relations both companies Sky and Virgin are trying to explain the possible reasons as to why things are going so bad in their media relations, in one side we hear about a possible intervention by Sky in order to prevent Virgin's takeover on ITV. So what are the reasons for this dispute according to both of these companies and how will they affect cable TV ...
TV or Not TV? That is the Question (Popularity: ): With all the modern technologies we have today, life has never been busier. In the 21st Century, we take on so much more, and are expected to achieve so much more with our day. Women especially are kept increasingly busy with a wide variety of tasks that can range from looking after the kids, climbing the corporate ladder, running a home based business, keeping fit and healthy, and the other ...
Steps to Watching Live TV On My Computer - Television on PC (Popularity: ): How do I go about watching live TV on my computer?It is now possible to watch live TV on your computer and in this article we will explain how.However one concern that many people will have with regard to watching live TV on their computers is it legal? The answer to this is yes. But there are a number of things you will need to do before you get started ...
What is High Definition Television? (Popularity: ): When does a television become HD? 'When it's ready and enabled to display high definition signals' would be the obvious answer, but this is somewhat non-descript and electronically it goes a lot deeper than that.A television screen or projector lens that is HD enabled has a higher resolution than that of a standard TV. This means that the lines which go across the screen are able to be closer together ...
San Diego distributor of projection DLP / LCD lamps (Popularity: ): Today people mostly prefer to use LCD displays than traditional CRT monitors. Moreover, DLP projection TVs and plasma TVs are popular types of TV technologies that are available in market. All these latest technologies guarantee you excellent flexibility and crystal clear picture. Even they are only a few inches thick, LCD, DLP and plasma displays, are still available in wider screen sizes. Today these TV technologies can help you get ...
|
|
Related Business |
|
Digital Satellite and Terrestrial Equipments (Popularity: ): Since 1993 on the Central Europe Market. Wide range of digital satellite goods. We are the traditional company producing satellite and digital technology in the highest quality. The guarantee of security is a lot of satisfied customers from wholesalers and end customers. Products made by our company are procured by our hologram.
Satellite & Digital Services Ltd (Popularity: ): Independent supplier and repairer of satellite receivers and digital goods. Can also install aerials in the South West of UK.
Aerial Force (Popularity: ): Aerialforce is a nationally established company committed to providing the highest quality of satellite, home entertainment and digital aerial installations and services. However big or small the job, we work hard to ensure you’re fully satisfied with every aspect of our work and service. Aerialforce directly employs highly skilled aerial and satellite installers who are local to you. Because they are local, they are usually able to provide a broad ...
Satellite Imaging Corporation (Popularity: ): Provides satellite image processing from Landsat, Ikonos, Spot, QuickBird sensors and production services including digital aerial photography, digital elevation models (DEM), remote sensing and GIS.
Space Island Group (Popularity: ): Developing a plan to design, build and operate commercial space transportation systems and destinations dedicated to commerce, research, satellite repair, manufacturing, and space tourism.
Digital Vision North West (Popularity: ): Digital Vision North West specialise in Satellite Installations and supply as well as many various kinds of digital television equipment from big names such as Sky, Freeview and Freesat. For the ultimate in digital television, our satellite installers offer you the latest in Sky TV.
Satellite and digital tv aerial installers (Popularity: ): TV Aerials, Dishes and satellite tv services, offered in Manchester and beyond. We perform TV Aerial Installation services, satellite dish and digital tv installation and repair services. Supply of CCTV equipment, dish realignment services and sale of tv viewing cards.
Watch Digital Internet TV On Your PC (Popularity: ): Are you paying high cost for cable television or satellite tv? Check out the all new Digital Internet TV for $17 and enjoy TV for your lifetime. Watch Digital Satellite TV on your PC, Live Laptop tv Online, Free Internet Television, PCTV, WEBTV, PPV Events.
Moxi Digital Inc. (Popularity: ): Provides Moxi Media Center entertainment set-top boxes for cable and satellite TV.
Universal Satellite Communications (Popularity: ): Provides mobile satellite production services, digital multi camera production, KU satellite uplink, downlink, fiber, microwave, editing, ENG crews and wide screen capabilities.
|
|
|
|
Print article
Bookmark this page