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In: Technology
3 Aug 2009For people who are looking for a different type of viewing experience than terrestrial or cable offer, they should try getting television service through communications satellites. Satellite TV is a type of service which gives you a greater array of channels and services, including paid subscription channels.
As early as 1962, Telstar satellite was successful in sending a relay satellite television signal from Europe to North America. A year later, Syncom 2, which was a geosynchronous communication satellite – made its debut around the world. Two years after that, the Early Bird – the first synchronous orbiting satellite – made its premiere. In 1967, the Soviet Union formed Orbita, an elliptical Molniya satellite that redelivered signals to downlink stations on the ground. Ekran ” the first Russian geostationary satellite ” carried Direct-To-Home TV in 1976.
There are thee broadcast standards used to distribute analog TV via satellite: PAL, NTSC, and SECAM. The analog signal’s frequency is altered from FM to baseband, and makes up the audio sub-carrier/video signal. Usually, the digitized television signal is QPSK.
Digital television – including signal transmitted via satellite- is based on a type of open standard such as MPEG and DVB-S. To scramble and access encryption, Videocypher, BISS, VideoGuard, Conax, PowerVu, Digicipher, Viacess, Nagravision, and Irdeto are used.
Three examples of satellite television exist: reception that is direct by the viewer, service through local TV affiliates, and headends reception. TVRO and DBS are used in homes and hotels. DBS (direct broadcast satellite) and TVRO (television receive only) are two types of direct reception received by the viewer that are used in homes and hotels.
Satellite TV is often chosen over analog TV because of the advantages it offers, two of which include advanced clarity and resolution. Satellite TV uses Ku band signals plus the best digital equipment ” a huge leap from the C-band analog cables (already outdated).
One of the benefits of satellite TV is the broad reception. For those who live outside of town or in an area where there is only one cable provider, satellite TV could be the perfect choice, as the number of retail companies is not as limited and allows you to choose the one the you feel best about. If you choose satellite TV, you will certainly have the greatest number of programming possibilities available.