Latest Satellite Radio Articles http://www.articletrader.com/ Articles at ArticleTrader en-us Use of Satellite Technology in Broadcasting http://www.articletrader.com/technology/satellite-radio/use-of-satellite-technology-in-broadcasting.html http://www.articletrader.com/technology/satellite-radio/use-of-satellite-technology-in-broadcasting.html Mon, 20 Jul 2009 12:54:26 -0500 With growing popularity of satellite broadcasting technology, there have emerged numerous companies providing complete satellite services in terms of DVB-RCS solutions, TDM/TDMA solutions, Internet over satellite, multi-media over satellite, teleport services, TV broadcasting and Radio Broadcasting solutions. In order to provide these services some of the most interesting antennas working in Ku, eKU, DBS & C band are utilized.

Due to the windfall in the satellite technology, it is now possible to link remote provinces to the main switching network through implementing point to Multipoint solutions, Point to Point solutions, Broadcast and Multicast applications, depending on the budget. This helps in increasing the coverage areas and subscribers within a short time and less operating cost.

Various broadcasting solution providers offer made-to-order and optimum quality satellite networks for TV broadcasting and Radio Broadcasting. For providing matchless teleport solutions with well integrated and flexible platform for radio and TV transmission all over, broadcasting and communication companies exploit hi-tech technology and optimized satellite systems.

With ever changing satellite technology, you can avail end-to-end teleport solutions for multimedia broadcasting, content distribution, IP connectivity and other telecom and satcom requirements, wherever you are located with the help of multiple remote hubs. You need a C-band and Ku-band transponder capacity that are can support Telecommunications Trunking, VSAT, Satellite News Gathering (SNG), Analog TV, Digital DTH, and High Definition TV. These are suitable for full time or occasional use, and the option of transponder leasing is also available.

There are many companies who provide you with complete engineering support for teleport deployment right from design, planning, program management, installation, integration, commissioning, and implementation of teleport facilities with 24/7 support for maintenance and network operations.

Various types of satellite transmission and broadcasting solutions available in the market are delineated below:
  • Radio and TV solutions through both fixed and mobile earth station solutions for radio and television requirements.
  • Fixed Earth Solutions for uplinking of major TV and Radio channels
  • Mobile Earth Stations for Digital TV signals and digital data services
  • Television Receive Only (TVRO) in terms of fixed and transportable TVRO systems and services
  • Digital Audio Broadcast Service (DAB) to facilitate radio stations to broadcast digital radio programs and data towards satellite receivers

    • And when talking about satellite services, how can one forget the Direct-to-Home (DTH) satellite broadcasting that is used in homes across wide geographical areas for distributing television and/or radio signals from high-powered geostationary satellites to small dish antennas and satellite receivers. Also, the internet and computer based TV broadcasting and Radio Broadcasting is also creating waves due to their advantages like portability, flexibility and cost-effectiveness.

    So, satellite technology brings simplicity to the complex broadcasting environment with the most cost effective and bandwidth efficient solutions available.


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    The author is an experienced Content writer and publisher for Business Development. Visit at http://www.bssteleport.com/ to know more about TV broadcasting, transponder leasing and teleport solutions.

    Source: http://www.articletrader.com ]]>         How to Choose Satellite TV Provider http://www.articletrader.com/technology/satellite-radio/how-to-choose-satellite-tv-provider.html http://www.articletrader.com/technology/satellite-radio/how-to-choose-satellite-tv-provider.html Sun, 12 Jul 2009 08:09:08 -0500 Todays many companies providing satellite broadcasting and distribution via television or Radio. Some companies like Globcos, Lyngsat and other big satellites network provider companies; you have a wide range of options available. These options include a wide range of programs, such as children, cartoons, fashion shows, cooking and sport.
    If you see that the suppliers of satellites to use, since there are other points you should. The number of channels you can select the right channel for a challenger. Among the many channels that are old favorites.
    These include the popularity of networks such as HBO, España, Discovery Wings Love Stories network, and much more. According to the providers of satellite TV that you have your membership in this, there are cases where you can more than 300 channels.
    These are options that many people find very interesting. There are other options open, with a satellite. For example, in one position, a free service for a whole year. It is a command that you must read, but that's no problem.
    Even if these options are not very interesting, you have to see if the option "on satellite TV. This option is based on the fact that a satellite of the owners of the house must be at least a number of criteria. Once the criteria are fully met to the satisfaction of your service provider of satellite TV, they are happy, a satellite antenna in your home and business.
    The largest supplier of satellite-TV page you will find a few small TV providers. These operations may not lead to the satellite antenna, a remote control or digital set-top receiver. On the other hand, you must purchase this material. This applies to all the tools you need.

    The idea to watch hundreds of TV channels is clearly something that people expect to enjoy. To help you, there is a lot of satellites. Your choice of satellite TV and satellite TV you can move to another Member State, a whole new world of entertainment.


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    Globcos provides Satellite Distribution, Satellite
    UP Link, Satellite Downlink, Teleport Services, Flyaway Services, SNG Services,Playout Services, Streaming and Satellite Broadcasting to worldwide clientele


    Source: http://www.articletrader.com ]]>         How Do Satellite TV Broadcasting Take Place? http://www.articletrader.com/technology/satellite-radio/how-do-satellite-tv-broadcasting-take-place.html http://www.articletrader.com/technology/satellite-radio/how-do-satellite-tv-broadcasting-take-place.html Mon, 29 Jun 2009 16:41:58 -0500 Satellite TV transmission is done by communication satellites that are located about 37000 kms above earth's surface. In order to make a satellite TV work, one has to find out a broadcasting antenna at an uplink facility. The television uplink satellite dishes have a wide diameter and are placed in the direction of the satellite to which it transmits its signals. The wide diameter facilitates the dish to be placed in the perfect position and share clear signals to and from the satellite. Transponders with different frequencies retransmit satellite signals to the earth.

    Satellite TV broadcasting is not much different from the transmission of broadcast TV. Satellite TV transmits TV programs direct to homes. Therefore, unlike broadcast TV, there is no problem of range, and neither the signals are interrupted and distorted images are delivered.

    In TV broadcasting, the problem of signals comes up due to the curved earth's surface. But in the case of satellite TV, since the satellites are located high up in the sky, the scope of coverage is increased. The satellite TV transmits and receives radio signals through satellite dishes which function as specialized antennas.

    When satellite TV was launched in the market for the very first time, home dishes were installed in most of the yards to enhance the TV viewing experience. Satellite TV broadcasting deliver the viewers numerous entertainment channels with clear picture and sound quality.

    The popularity of satellite TV was restricted to the western countries until a few years back. But now the craze of satellite TV is capturing the entire world. It has emerged not only as a source of entertainment, but also as a source of education.

    Today, people throughout the globe consider Satellite TV as one of the best entertainment channels on which they can rely upon. Satellite TV broadcasting delivers a number of channels to the viewers right from entertainment, news, sports, movies, kids, music to infotainment and lifestyle. Therefore, satellite TV provides entertainment to people with different interests and of all age groups.

    Nowadays many companies have come up in the markets which offer TV and Radio broadcasting services and facilities. But to enjoy uninterrupted entertainment, you should always choose a reliable and reputed company.


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    The author is an experienced Content writer and publisher for Business Development. Visit at http://www.bssteleport.com/ to know more about TV broadcasting and Radio broadcasting.

    Source: http://www.articletrader.com ]]>         Differentiation between Satellite TV and Cable TV http://www.articletrader.com/technology/satellite-radio/differentiation-between-satellite-tv-and-cable-tv.html http://www.articletrader.com/technology/satellite-radio/differentiation-between-satellite-tv-and-cable-tv.html Thu, 18 Jun 2009 08:02:29 -0500
    If a person has cable television at home, he/she can watch only basic sports channels but if you have Satellite TV, you can watch unlimited sports channel.

    People get bored watching the same type of channels everyday. Cable TV does not offer a lot of options. But Satellite TV has a bit of everything. It covers natural living and healthy family lifestyles. Satellite TV provides a wide range of programs when compared to Cable TV.

    Most of the cable operators charge a large amount of fee when they send their technician. But if you install a Satellite TV then there is free installation and setup. They do not charge any fee. A recent study shows that on an average Satellite TV cost 20% less than cable TV. Subscription rates for Satellite TV have only increased in the last 6 years since January 1997 13% while cable rates in the same period increased over 35% which is almost 3 times greater.

    Cable companies usually offer basic and digital packages. But Satellite TV's generally offer packages that are designed based on your family. Satellite TV's not only offers attractive packages but educational as well.

    Some people like to watch programs in Spanish, which a cable operator may not offer. But if you have a Satellite TV they would offer you a whole package of channels in Spanish. There are many specialty programs which many cable TV operators do not have the capacity to handle such as religious programs, foreign language programs from Russian to Arabic and other niche channels. The cost per channel is significantly less with Satellite TV.

    Some other special features that Satellite TV provides are it allows 60 to 100 hours of easily recording programs without video tape. With the help of personal video recorder technology it can zap commercials while recording. This service is not available in Cable TV. Other features include parental lock, personal video recording (PVR) etc. You can enjoy watching pay per view movies, sporting events and regular programs with Dolby Digital 5.1 sound.

    If you have a satellite TV you can watch lot of local channels that are beyond your reach. In major cities you can get your local FOX, CBS, NBC and ABC affiliate stations. Because Satellite TV uses a superior "Ku" higher band frequency than the lower "C" band used by Cable TV this allows for far more channels than cable can offer.

    --
    Daniel is an expert SEO copywriter for viewsat pvr7000. He has been written many articles like free to air, satellite signal finder, conaxsat cnx, dual lnb bracket and more. For more information visit our site worldwidesatellites.com. Contact me at worldwidesatellitesart@gmail.com

    Source: http://www.articletrader.com ]]>         Your Expertise is Boring! http://www.articletrader.com/technology/satellite-radio/your-expertise-is-boring.html http://www.articletrader.com/technology/satellite-radio/your-expertise-is-boring.html Wed, 03 Jun 2009 08:58:46 -0500
    So in this age of round-the-clock, on-demand, blue tooth, on line, high def., Wi-Fi, via satellite, news junky, at your fingertips world of information, what separates those messages that break through the clutter and the vast majority of expertise that goes un-tapped? The answer is very simple: It's the delivery!

    Information, delivered by experts in a straightforward fashion, is too often reminiscent of a classroom lecture Boring! However that same content, deliver with passion, purpose, urgency, spirit and conviction can move people to action and move you to the top of the news media's first call list.

    The information stored in your brain is merely the entry fee. Your credentials to deliver that content is only the prerequisite. But your crusade is what truly makes you interesting. Your passion for the message is what makes you believable and its timely connection to some current or personal challenge is what makes it relevant.

    Watch any national morning show, or cable news talk show and note who has the lion's share of camera time. In television news, the one who most deftly steers the conversation, wins. But all too often, experts who are invited to sit on the television set to comment on a story of national interest, merely answer the questions posed to them and provide informed analysis. They are graciously thanked for their time, but rarely asked back. Why? Because most media opportunities are a test in disguise. And most experts unknowingly fail the test.

    But think for a moment about the experts that have been featured time and time again in the national news some even being rewarded with their own show. What is the common denominator? Above all else, it is that they are fiercely opinionated. They know what they want to say and aren't afraid to say it. I'm not suggesting that you have to be a jerk to be newsworthy, only that you have to have the conviction that personifies a true thought leader.

    Good radio talk show hosts, for example, don't bring up a topic and ask for your opinions. Instead they tell you what they think and invite you to agree or disagree. Who among us is inspired to follow, or be moved to action by a credible, yet straightforward, or dry" expert offering his or her expertise on a story of national or industry-specific interest?

    To build your business, to attract clients or customer, to inspire others to hire you or buy your books or products, to engender loyalty and inspire true change, you must move beyond the realm of simply being smart and good at what you do. You must truly inspire.

    And while we are all made up of the same composite materials, we are all wired a little differently. Being overly expressive and delivering content on the edge of your seat can be challenging for some, but it must be done. In working with the news media, we are playing in their sandbox and we must play by their rules, or we won't be asked to play again.

    For any kind of high-profile sustainability, you've got to provide what television journalists call Good TV." New, innovative, or provocative solutions to long-standing problems can be good TV. Either healthy exchanges or outright conflict among guests can both be good TV. Good TV means nothing more than being interesting and not blending in. Unfortunately, experts tend to be so immersed in their content that they believe it is the information that is interesting. In reality, it is the passion that brings about Good TV."

    The biggest misperception in working with the press is the false notion that when a reporter asks a question, it's because they want to know the answer. Unless it's some sort of news investigation, the purpose of their questions is in most cases, simply to give you a launch pad for your ideas, your input and perspective. I'm not suggesting that you don't answer the question, just use the answer as the springboard for your crusade.

    Most reporters don't know the subject nearly as well as the guest and you can easily move past the often irrelevant, or less important question by simply employing transitional phrases such as: While I certainly agree, it's also important to remember that...," That may be true, but the issue that really concerns me is...," While that issue is making headlines, we can't forget that...," people sometimes fail to recognize that...," I find it fascinating that..." Then say what you came there to say, and do it with passion regardless of the questions asked. Despite conventional wisdom, the reporter or interviewer will be very appreciative of your media savvy.

    As most on-air interviews last no more than 90 seconds, I advised my clients to be crystal clear in their mind what they want to say, what they HAVE to say, what is crucial for them to impart to their audience for them to be successful in their business. Then they must make a solemn pledge to themselves (and to me) that they will not get out of that chair until they say it!

    It's the quid pro quo of working with the press: We help them fill up their newspapers and newscasts with content, and in return, we get a platform to relay our ideas. Use it. Don't waste it. Don't be boring. Be opinionated. Be passionate, relevant, provocative, believable, timely, different, memorable and news-worthy.

    This article is more than just my opinion and my expertise it is my crusade. If I had begun this article with a simple admonition to be more animated in your interviews, do you think you'd still be reading? Or would you have turned the page long ago? Remember, there are hundreds of millions of TV remote controls and page-turning fingers out there. Don't be boring and they'll likely stick with you, turn to you and hopefully come back to you.

    --
    Wes Upchurch is a noted online public relations specialist, who shows professionals and businesses how to effectively incorporate PR strategies into their online campaign. Visit http://www.pressdr.com for more information.

    Source: http://www.articletrader.com ]]>         Information about satellite Finders http://www.articletrader.com/technology/satellite-radio/information-about-satellite-finders.html http://www.articletrader.com/technology/satellite-radio/information-about-satellite-finders.html Wed, 27 May 2009 02:23:53 -0500
    The pointing of the dish towards the satellite becomes of utmost importance to view satellite cable programs. While pointing the dish towards the satellite, the satellite finder is necessary. Before aligning the dish you should turn the gain knob up sufficient so that the needle and the tone are activated. You should get a good azimuth reading on the compass. The dish is made of metal. If the reading on the compass is taken near it, it will be incorrect. You should stand back a few feet and look at a tree top or a house at a distance. Then you should set the elevation setting on the scale on the dish mount. The dish should be placed in such a way that it is loose enough to move side to side and up and down. It should be firmly placed. To know the azimuth and the elevation in your area, you should check the install screen in the receiver menu and enter in your zip code.

    You should attach one end of the jumper cable to the output on the LNB and the other end to the Satellite Finder LNB input. The other meter output should be attached to the receiver. If the meter output comes with a battery attached, then you should attach it to that.

    Then you should position the dish. Turn it slowly by quarter to half an inch at a time. By this the needle will go up to 10. You should then turn it down to 5. Do not turn it down completely. As the dish is moved, it will again go up to 10. After a few trials, the needle will not be able to get the needle to read to 10. At this point, the reading will fall down with each and every movement of the dish - whether it is side to side or up and down. When such a situation occurs then you will know that you have found the maximum signal position for the dish. After this is done, you should snug down the dish. Then you should check if the signal is locked. This you can do by checking the dish aiming screen on the television. If the signal is not locked then it means that you have peak the dish on the wrong satellite. You will now realize the importance of the azimuth and compass readings which help to position the dish. Even a movement of ten degrees will make peak on the wrong satellite.

    Thus, a satellite finder is a very important part of installing a dish to receive signals when connecting to a television and viewing programs of your choice. Alignment, azimuth and compass reading also play an important part in getting the satellite finder to fix on the right satellite for viewing. All types of cable networks and dish antennas require that it faces a satellite to get show the programs. So, the work of a satellite finder is of utmost importance in installing a dish antenna. With more and more channels coming up and more and more satellites beaming the programs, the work of a satellite finder has to be taken into account while installing a dish for television viewing.

    --
    Daniel is an expert SEO copywriter for pansat remote control. He written many articles like dreambox 7020, nfusion nuvenio, conaxsat pvr, free to air viewsat and more. For more information visit our site worldwidesatellites.com. Contact me at worldwidesatellitesart@gmail.com

    Source: http://www.articletrader.com ]]>         Wireless Pc Speakers - A Quick Guide! http://www.articletrader.com/technology/satellite-radio/wireless-pc-speakers-a-quick-guide.html http://www.articletrader.com/technology/satellite-radio/wireless-pc-speakers-a-quick-guide.html Mon, 20 Apr 2009 11:49:42 -0500 As you probably know, there are a lot of wires involved when setting up a computer. These wires are one of the reasons why people turn to use wireless system instead because by using this system, you can avoid much of the wires. One of these places, where a wireless system can replace the wires is the wireless pc speakers.
    You need to check that your computer is compatible with your wireless pc speakers and that they meet your particular needs. You can find great working wireless pc speakers for just $100 and they will be a great addition to your computer

    With wireless pc speakers, you have the option to enjoy music from any part of your home. You only need a computer and a media player installed, and of course, you need to set up the speakers where you want them, and then you are ready to go and listen to your music.

    By installing a subwoofer, you will greatly improve the sound quality. Installing a subwoofer is easy and will make your wireless pc speakers system even better because it will extend the low frequencies register.

    A simple way to improve the sound from the wireless pc speakers is to connect your computer to an existing sound system. You can for example connect it to your home theater system and/or stereo. In that way, you will greatly increase the sound quality of your system.
    Before you decide to invest in wireless pc speakers, you have to know what kind of system you want. There are three different kind of wireless pc speakers system you have to choose from and they are:

    • 7.1 Wireless System. This system has six 2-way satellite speakers, one 2 way satellite and one subwoofer
    • 5.1 Wireless System. This system has four 2-way satellites, one 2-way center satellite and one subwoofer.
    • 2.1 Wireless System. This system has one pair of satellite speakers and a 2-way center satellite.

    So, these are are the system you have to choose between and only you know what kind of system will be perfect for just you.

    The most important thing you should do before choosing wireless pc speakers is to make sure that the wireless pc speakers will work together with your computer. That means you have to check that your computer supports wireless system. If it does not support wireless system, then you need to upgrade your computer.

    There are two types of wireless speakers to choose from, indoors and outdoors. The outdoors wireless pc speakers come with built in batteries, which needs to be charge from time to time. Usually, it will take about 20 hours to recharge and will work up to 4 hours when fully charged.



    --

    Did you find this article useful? Then you have to visit this this site, because it has a lot more information about Wireless Pc Speakers!



    Source: http://www.articletrader.com ]]>         Highly Adaptable Satellite (HYLAS) http://www.articletrader.com/technology/satellite-radio/highly-adaptable-satellite-hylas.html http://www.articletrader.com/technology/satellite-radio/highly-adaptable-satellite-hylas.html Thu, 26 Mar 2009 05:09:34 -0500
    HYLAS is a low cost satellite and will cover rural areas of western and central Europe that are unlikely to receive any terrestrial broadband service within the next ten years.

    The idea is for internet services to be delivered either direct or through a central terminal in a village and then fed out to a cluster of users in a local area via a wi-fi network.

    HYLAS is named after its 'highly adaptable' payload, developed by Astrium Limited. It automatically allocates varying amounts of power and bandwidth to the different regions within its footprint, reacting to the highs and lows of traffic demand. This means that between 150,000 and 300,000 users can access HYLAS at any one time.

    As well as broadband Internet, HYLAS will facilitate the distribution and broadcast of a range of HDTV (high definition television) programmes over much of Europe.

    By 2015, three million households are set to benefit from HYLAS. BNSC has contributed £24 million through the ARTES programme and the City of London over £50 million.

    HYLAS is being designed and built by a core team from Avanti Communications and Astrium UK, with support from specialist organisations around Europe. Astrium Ltd's Generic Flexible Payload and Next Generation Antenna will be integrated into the Indian ISRO I-2K spacecraft platform.

    Avanti Communications, the UK's only fixed satellite services operator, is launching HYLAS in 2009. The company will then offer state-of-the-art satellite services to corporate, telecommunications, video broadcasting and military users across Europe.

    HYLAS will be the first UK-owned and operated broadcast satellite for 15 years.

    SMALL SATELLITE TECHNOLOGY

    UK scientists are at the forefront of developments in micro satellites. These are low cost, small satellite platforms.

    Micro satellites use a range of new techniques that enable scientists to build and launch fast turnaround, cost-effective satellites with the same high-level results as more traditional satellite technology.

    Since British scientists designed, built and launched the pioneering Ariel 3 on 5 May 1967, innovation in the UK has continued.

    1985, the University of Surrey set up Surrey Satellite Technology Limited (SSTL) to develop its success in small satellite platforms. SSTL is now a world leader in small satellite technology.

    Their current microsatellite missions include the Disaster Monitoring Constellation (DMC) of satellites, and GIOVE-A, the first spacecraft in Europe's new Galileo satellite navigation system, and - with UK partners QinetiQ, the STFC Rutherford Appleton Laboratories and InfoTerra - TopSat.

    DMC, GIOVE-A (originally Gemini) and TopSat were all originally developed as part of a BNSC-led Government project Micro Satellite Applications in Collaboration (MOSAIC).

    SSTL is also involved in Project for Onboard Autonomy (Proba), the first microsatellite launched by the European Space Agency and its first fully autonomous spacecraft.

    New satellite techniques like this are set to make a huge impact on the future of space missions, creating opportunities and opening up access to space.

    --
    John Paul is a Expert author for Shuttle Station,Moon & Mars,Solar System. He has written many articles like Universe,Aeronautics,Earth. For more information visit our site http://spacenews.uuuq.com/multimedia/multimedia.html

    Source: http://www.articletrader.com ]]>         Satellite broadcasting technology for TV and Radio http://www.articletrader.com/technology/satellite-radio/satellite-broadcasting-technology-for-tv-and-radio_1.html http://www.articletrader.com/technology/satellite-radio/satellite-broadcasting-technology-for-tv-and-radio_1.html Sat, 14 Mar 2009 08:24:21 -0500 Television programming to the viewer's home or business. A radio signal can only travel in a straight line however. Enter the satellite. By placing an orbiting satellite at 37,000 km (22,300 miles) above the earth and having it match the earth's rotational speed (7,000 miles per hour) the satellite stays over the same spot above the earth. This is referred to as being in geosynchronous orbit.

    These orbits are sometimes also referred to as Clarke orbits in honor of Arthur C. Clarke who first came up with the idea in an article he wrote back in 1945 entitled "Extraterrestrial Relays" published in Wireless World Magazine. The orbiting satellite then retransmits the radio broadcast signal back down to earth to the receiving satellite dish (mini-dish) located on your home or business. The signal then travels through coaxial cables from the dish into the receiver that is connected to your TV, where the signal is then descrambled into viewable programming for your family to enjoy.

    Uplink Station

    Satellite TV programming that you watches at home begins with a transmitting satellite dish or antenna located at what is known as an uplink station. The satellite dish located on your house is only 18" in diameter and is tiny compared to the huge satellite dishes used at uplink stations. These satellite dishes can be as large as 9 to 12 meters (30 to 40 feet) in diameter. The great size of these satellite dish transmitters allows for a much stronger radio signal and for better aiming of the signal at the orbiting satellite. The uplink dish is pointed toward a specific satellite and the up linked signals are transmitted within a specific radio frequency range, so as to be received by one of the transponders tuned to that frequency range aboard that satellite. The transponder 'retransmits' the signals back to Earth but at a different frequency band (to avoid interference with the uplink signal), typically in the C-band (4-8 GHz) or Ku-band (12-18 GHz) or both. The leg of the satellite signal path that transmits the signal down to the Earth station is known as the 'downlink'. Satellites can have up to 32 transponders for Ku-band and up to 24 for C-band only satellites. Typical transponders each have a bandwidth between 27 MHz and 50 MHz. Geostationary Kc-band satellites need to be spaced at least 1 degree apart to avoid signal interference. For C-band satellites the spacing needs to be at least 2 degrees.

    Satellite Signal Technology

    Original satellite broadcasts are converted into a high-quality, uncompressed digital stream containing a lot of data, and sends it at a speed of 270 megabits per second (Mbps) for each channel. All of this data must be compressed however or the satellite would not be able to receive the information. The system of compression used in the U.S. is the MPEG-2 compressed video format. This is similar to the system used to make DVDs. The provider could now reduce the 270-Mbps stream to about 5 or 10 Mbps, enabling them to transmit about 200 channels, instead of the 30 they could transmit before compression. These signals are scrambled so that only paid subscribers can receive them.

    Mini-Dish Technology

    Unlike their predecessors, today's satellite dishes are small, only 18" in diameter and are referred to as a 'mini-dish'. A typical satellite dish consists of two parts: the reflector and the feed horn. The reflector is the concave dish-shaped part of the antenna. This is the part of the antenna that captures and focuses the satellite signal onto the feed horn. The feed horn is the part of the antenna that is mounted on an arm that sticks out from the reflector dish. It takes the signal and feeds it through a cable to your satellite receiver (black box). Newer satellite dish designs feature multiple feed horns. This is so the dish can pick up signals from several satellites and clearly focus the captured signal on one of the several feed horns.

    Something called a feed horn has a feature known as a low noise block down converter (LNB). This provides for clear signal. The LNB does two things: It amplifies the signal received from the satellite provider, and filters out 'signal noise,' radio signals that do not carry the satellite provider's television programming.

    Satellite Receiver

    The satellite receiver is simply the black box that is connected to your television set. It receives the signal from your mini-dish and then de-scrambles the signal into viewable pictures for your family to watch. The receiver does three main things: It receives and de-scrambles the signal which contains the programming. It separates the programming into the individual channels you request by way of the channel selector button on either your TV or your remote control. It tracks your Pay Per View usage, and sends your billing information for this programming to your provider.

    Today, there are several different kinds of receivers: standard receivers, DVR receivers and HD receivers for receiving high definition (HDTV) television programming. DVR (Digital Video Receiver) players allow the viewer to actually Pause and Replay live TV and to record up to 70 hours on the DISH Network DVR 311 or 322 players. The DISH Network DVR receiver is an advanced dual tuner, two TV output satellite receiver and integrated digital video recorder (DVR). The DISH Network DVR's were designed so that you never have to miss another favorite TV show again. No matter what your schedule; with the Dish Network DVR you can simply record your favorite shows with just the click of a button. DISH Network offers over 500 programming channels to choose from and all DISH Network satellite programming comes in 100% all-digital video and audio.


    --
    Globcos provides Satellite Distribution, Satellite UP Link, Satellite Downlink, Teleport Services, Flyaway Services, SNG Services, Playout Services, Streaming and Satellite Broadcasting to worldwide clientele.

    Source: http://www.articletrader.com ]]>         Satellite broadcasting technology for TV and Radio http://www.articletrader.com/technology/satellite-radio/satellite-broadcasting-technology-for-tv-and-radio.html http://www.articletrader.com/technology/satellite-radio/satellite-broadcasting-technology-for-tv-and-radio.html Thu, 12 Mar 2009 08:36:04 -0500 Television programming to the viewer's home or business. A radio signal can only travel in a straight line however. Enter the satellite. By placing an orbiting satellite at 37,000 km (22,300 miles) above the earth and having it match the earth's rotational speed (7,000 miles per hour) the satellite stays over the same spot above the earth. This is referred to as being in geosynchronous orbit.

    These orbits are sometimes also referred to as Clarke orbits in honor of Arthur C. Clarke who first came up with the idea in an article he wrote back in 1945 entitled "Extraterrestrial Relays" published in Wireless World Magazine. The orbiting satellite then retransmits the radio broadcast signal back down to earth to the receiving satellite dish (mini-dish) located on your home or business. The signal then travels through coaxial cables from the dish into the receiver that is connected to your TV, where the signal is then descrambled into viewable programming for your family to enjoy.

    Uplink Station

    Satellite TV programming that you watches at home begins with a transmitting satellite dish or antenna located at what is known as an uplink station. The satellite dish located on your house is only 18" in diameter and is tiny compared to the huge satellite dishes used at uplink stations. These satellite dishes can be as large as 9 to 12 meters (30 to 40 feet) in diameter. The great size of these satellite dish transmitters allows for a much stronger radio signal and for better aiming of the signal at the orbiting satellite. The uplink dish is pointed toward a specific satellite and the up linked signals are transmitted within a specific radio frequency range, so as to be received by one of the transponders tuned to that frequency range aboard that satellite. The transponder 'retransmits' the signals back to Earth but at a different frequency band (to avoid interference with the uplink signal), typically in the C-band (4-8 GHz) or Ku-band (12-18 GHz) or both. The leg of the satellite signal path that transmits the signal down to the Earth station is known as the 'downlink'. Satellites can have up to 32 transponders for Ku-band and up to 24 for C-band only satellites. Typical transponders each have a bandwidth between 27 MHz and 50 MHz. Geostationary Kc-band satellites need to be spaced at least 1 degree apart to avoid signal interference. For C-band satellites the spacing needs to be at least 2 degrees.

    Satellite Signal Technology

    Original satellite broadcasts are converted into a high-quality, uncompressed digital stream containing a lot of data, and sends it at a speed of 270 megabits per second (Mbps) for each channel. All of this data must be compressed however or the satellite would not be able to receive the information. The system of compression used in the U.S. is the MPEG-2 compressed video format. This is similar to the system used to make DVDs. The provider could now reduce the 270-Mbps stream to about 5 or 10 Mbps, enabling them to transmit about 200 channels, instead of the 30 they could transmit before compression. These signals are scrambled so that only paid subscribers can receive them.

    Mini-Dish Technology

    Unlike their predecessors, today's satellite dishes are small, only 18" in diameter and are referred to as a 'mini-dish'. A typical satellite dish consists of two parts: the reflector and the feed horn. The reflector is the concave dish-shaped part of the antenna. This is the part of the antenna that captures and focuses the satellite signal onto the feed horn. The feed horn is the part of the antenna that is mounted on an arm that sticks out from the reflector dish. It takes the signal and feeds it through a cable to your satellite receiver (black box). Newer satellite dish designs feature multiple feed horns. This is so the dish can pick up signals from several satellites and clearly focus the captured signal on one of the several feed horns.

    Something called a feed horn has a feature known as a low noise block down converter (LNB). This provides for clear signal. The LNB does two things: It amplifies the signal received from the satellite provider, and filters out 'signal noise,' radio signals that do not carry the satellite provider's television programming.

    Satellite Receiver

    The satellite receiver is simply the black box that is connected to your television set. It receives the signal from your mini-dish and then de-scrambles the signal into viewable pictures for your family to watch. The receiver does three main things: It receives and de-scrambles the signal which contains the programming. It separates the programming into the individual channels you request by way of the channel selector button on either your TV or your remote control. It tracks your Pay Per View usage, and sends your billing information for this programming to your provider.

    Today, there are several different kinds of receivers: standard receivers, DVR receivers and HD receivers for receiving high definition (HDTV) television programming. DVR (Digital Video Receiver) players allow the viewer to actually Pause and Replay live TV and to record up to 70 hours on the DISH Network DVR 311 or 322 players. The DISH Network DVR receiver is an advanced dual tuner, two TV output satellite receiver and integrated digital video recorder (DVR). The DISH Network DVR's were designed so that you never have to miss another favorite TV show again. No matter what your schedule; with the Dish Network DVR you can simply record your favorite shows with just the click of a button. DISH Network offers over 500 programming channels to choose from and all DISH Network satellite programming comes in 100% all-digital video and audio.


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    Globcos provides Satellite Distribution, Satellite UP Link, Satellite Downlink, Teleport Services, Flyaway Services, SNG Services, Playout Services, Streaming and Satellite Broadcasting to worldwide clientele.

    Source: http://www.articletrader.com ]]>