Tag: encryption

Satellite TV is delivered by communications satellites, as opposed to conventional terrestrial and cable television. In many areas of the world satellite television services supplement older terrestrial signals, providing a wider range of channels and services, including subscription-only services.

Standards

Analogue television is usually sent (scrambled or unscrambled) in PAL, NTSC, or SECAM television satellite broadcast standards. Digital television, including that transmitted via satellites, is generally based upon open standards such as MPEG and DVB-S. Some of the encryption/scrambling methods include BISS, Conax, CryptoWorks, DigiCipher, DreamCrypt, Irdeto, MediaGuard, NagraVision, PowerVu, SHL, Sidsa, Viaccess, Videocipher, VideoGuard and XCrypt.

Satellite Television – A Look At Some Of The Available Services

Canada
In Canada, the two legal DBS services available are Bell Canada’s ExpressVu and StarChoice. Hundreds of thousands (up to a million by some estimates) of Canadians access or have accessed American services – usually these services have to be billed to an American address and are paid for in U.S. dollars.

United States
DirecTV, the first high-powered DBS system, went online in 1994 and was the first North American DBS service; it is now owned by News Corporation.
In 1996, EchoStar’s Dish Network went online in the United States and has gone on to similar success as DirecTV’s primary competitor.
The majority of ethnic-language broadcasts to North America are carried on Ku band free-to-air; the largest concentration of ethnic programming is on Intelsat Americas 5 at 97° W. GlobeCast World TV offers a mix of free and pay-TV ethnic channels in the internationally-standard DVB-S format, as do others. Home2US Communications Inc. also offers ethnic programming, the platform is on AMC-4 at 101° W, with several ethnic channels as well as free and pay-TV. Several U.S.-English language network affiliates (representing CBS, NBC, ABC, PBS, Fox, WB, i and UPN) are available as free-to-air broadcasts, as are the three U.S.-Spanish language networks (Univisión, Telefutura and Telemundo). The number of free-to-air specialty channels is otherwise rather limited…..

Continental Western Europe
In Europe, DBS satellite services are found mainly on Astra satellites and Hotbird (operated by Eutelsat), with Sky Italia, Canal Digitaal and UPC being the main providers in Italy, Western Europe and Central Europe.
BSkyB (known as Sky) also serves Northern Europe and many channels can be received as far away as Cyprus.

United Kingdom
Other than the satellite companies mentioned above, there is Sky Digital – a closed network requiring the companies licensed set top boxes

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Dish Network, and other satellite TV providers didn’t just appear over night. The development of satellite television took years and its origins can be traced back to the 1950s and the space race.

The original concept of satellite television is often attributed to writer Arthur C. Clarke, who was the first to suggest a worldwide satellite communications system. Funding for satellite technology in the U.S. began in the 1950s, amidst the space race, and the Russian launching of the satellite Sputnik in 1957.

The first communication satellite was developed by a group of businesses and government entities in 1963. Syncom II orbited at 22,300 miles over the Atlantic; the first satellite communication was on July 26, 1963, between a U.S. Navy ship in Lagos, Nigeria and the U.S. Army naval station in Lakehurst, New Jersey.

Overloaded land based distribution methods had the telephone companies utilizing satellite communication way before the television industry even came into the picture. In fact, it was not until 1978 that satellite communication was officially used by the television industry.

In 1975, RWT’s co-founder and BBC transmitter engineer Stephen Birkill built an experimental system for receiving Satellite Instructional Television Experiment TV (SITE) transmissions, beamed to Indian villages, from a NASA geostationary satellite.

Birkill extended his system, receiving TV pictures from Intelsat, Raduga, Molniya and others. In 1978, Birkill met up with Bob Cooper, a cable TV technical journalist and amateur radio enthusiast in the U.S., who invited him to a cable TV operators’ conference and trade show, the CCOS-78. It was there that Birkill met with other satellite TV enthusiasts, who were interested, and ready to help develop, Birkill’s experiments.

Interest in Television Receive Only (TVRO) satellite technology burst forward. The American TVRO boom caught the attention of premium cable programmers, who began to realize the potential of satellite TV. Back in the mid-1970s, TV reception was the under the control of international operators, Intelsat and Intersputnik.

On March 1, 1978, the Public Broadcasting Service (PBS) introduced Public Television Satellite Service. Satellite communication technology caught on, and was used as a distribution method with the broadcasters from 1978 through 1984, with early signals broadcast from HBO, TBS, and CBN (Christian Broadcasting Network, later The Family Channel). TVRO system prices dropped, and the trade organization, Society for Private Commercial Earth Stations (SPACE), and the first dealerships were established.

Broadcasters realized that everyone had the potential to receive satellite signals for free, and they were not happy. But the Federal Communications Commission (FCC) was governed by its open skies’ policy, believing that users had as much right to receive satellite signals as broadcasters had the right to transmit them.

In 1980, the FCC established the Direct Broadcast Satellite (DBS), a new service that consisted of a broadcast satellite in geostationary orbit, facilities for transmitting signals to the satellite, and the equipment needed for people to access the signals. In turn, broadcasters developed methods of scrambling their signals, forcing consumers to purchase a decoder, or a direct to home (DTH) satellite receiver, from a satellite program provider.

From 1981 to 1985, the big dish satellite market soared. Rural areas gained the capacity to receive television programming that was not capable of being received by standard methods.

The Satellite Broadcasting and Communications Association of America (SBCA) was founded in 1986 as a merger between SPACE and the Direct Broadcast Satellite Association. But by this point, American communication companies had soured on the prospect of satellite TV. Broadcast cable was very successful at this time, and the satellite industry received a lot of negative press coverage. Fifty percent of all satellite retailers closed their businesses.

Business eventually recovered, but the illegal theft of pay television signals was still a problem. Ultimately, encryption has proven to be the ultimate salvation of the satellite industry as it has made the transition from a hardware to software entertainment-driven business.

Early successful attempts to launch satellites for the mass consumer market were led by Japan and Hong Kong in 1986 and 1990, respectively. In 1994, the first successful attempts in America were led by a group of major cable companies, known collectively as Primestar.

Later that year, Direct TV was established, and in 1996, the DISH Network, a subsidiary of Echostar, also entered the satellite TV industry. DISH Network’s low prices forced competing DBS providers to also lower their prices. And an explosion in the popularity of digital satellite TV ensued.

About the author:

I am first and foremost an observer of life. I enjoy analyzing and exploring all aspects of life on planet Earth, and expressing my personal perspective on the nitty gritty of it all. As a result of my observations, I have become a freelance writer. http://www.dish-network-satellite-tv.ws/

Written By: Frank Johnson

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