cable and satellite tv

Category: Education

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By: GreyP (124 month(s) ago)

I love having satellite TV. If you need satellite service in Raleigh then try going to

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CONTENTS CABLE TELEVISION Other cable-based services Consumer issues SATELLITE TELEVISION History Technology

Slide 3: 

CABLE TELEVISION: Cable television is a system of providing television to consumers via radio frequency signals transmitted to televisions through fixed optical fibers or coaxial cables located on the subscribers property, much like the over-the-air method used in traditional television broadcasting (via radio waves) in which a television antenna is required.  The abbreviation CATV is often used to mean "Cable TV". It originally stood for Community Antenna Television, from cable television's origins in 1948: in areas where over-the-air reception was limited by distance from transmitters or mountainous terrain, large "community antennas" were constructed, and cable was run from them to individual homes. The origins of cable broadcasting are even older as radio programming was distributed by cable in some European cities as far back as 1924.

Other cable-based services… : 

Other cable-based services… Cable television signals use only a portion of the bandwidth available over coaxial lines. This leaves plenty of space available for other digital services such as cable internet, cable telephony and wireless services, using both unlicensed and licensed spectrum. Beginning in 2004 in the United States, the traditional cable television providers and traditional telecommunication companies increasingly compete in providing voice, video and data services to residences. The combination of TV, telephone and Internet access is commonly called triple play regardless of whether CATV or telcos offer it.

Consumer issues… : 

Consumer issues… Using a cable service naturally requires that access to a cable network is installed at the customer location. Laying and maintaining this cable has costs. From the consumer's viewpoint, having a choice of who provides this service may be deemed desirable, however from a business viewpoint it may be undesirable as this would require multiple companies investing in laying many generally identical cables to the same location. Altogether that could mean greater costs, since there are more physical cables in existence. Therefore the idea of a natural monopoly may apply, whereby in most places only one cable provider is preferable (seemingly for all concerned).

Contd… : 

Contd… Competition in one place may therefore come in the form of terrestrial or satellite providers. As with all situations where competition is in some way limited, there is a potential for consumers to feel they are unfairly treated by the market. Market regulators may therefore tend to limit such consumer concerns by broadening the consumers choice from a single provider, for instance in expecting them to offer variously priced channel selections, improving service other times (for instance, by making use of technological progress) and measures such as providing free-for-all (public) TV


SATELLITE TELEVISION: Satellite television is television delivered by the means of communications satellite and received by satellite dish and set-top box. In many areas of the world it provides a wide range of channels and services, often to areas that are not serviced by terrestrial or cable providers. A satellite dish is a dish-shaped type of parabolic antenna designed to receive microwaves from communications satellites, which transmit data transmissions or broadcasts, such as satellite television.

History… : 

History… The first satellite television signal was relayed from Europe to the Telstar satellite over North America in 1962. The first geosynchronous communication satellite, Syncom 2, was launched in 1963. The world's first commercial communication satellite, called Intelsat I (nicknamed Early Bird), was launched into synchronous orbit on April 6, 1965. The first national network of satellite television, called Orbita, was created in Soviet Union in 1967, and was based on the principle of using the highly elliptical Molniya satellite for re-broadcasting and delivering of TV signal to ground downlink stations. The first domestic North American satellite to carry television was Canada’s geostationary Anik 1, which was launched in 1972. ATS-6, the world's first experimental educational and Direct Broadcast Satellite, was launched in 1974. The first Soviet geostationary satellite to carry Direct-To-Home television, called Ekran, was launched in 1976.

Technology… : 

Technology… India Over 300 TV Satellite television channels are broadcasted in India. This includes channels from the state-owned Doordarshan, News Corporation owned STAR TV, Sony owned Sony Entertainment Television, Sun Network and Zee TV. Direct To Home service is provided by DishTv, Airtel Digital TV, Reliance BIG TV, DD Direct Plus, Videocon d2h, Sun Direct DTH and TataSky. Few of them have already started their premium HD services. These services are provided by locally built satellites from ISRO such as INSAT 4CR, INSAT 4A, INSAT-2E, INSAT-3C and INSAT-3E as well as private satellites such as the Dutch-based SES, Global-owned NSS 6, Thaicom-2 and Telstar 10.

Indian Satellite TV providers: : 

Indian Satellite TV providers:

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Thank you…

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