Satellite television


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Satellite television

  1. 1. Topic: satellite T.V Rida munir butt Saba ijaz Misbah bahadur Kashifa zafar Aroosa tariqStudents of mass communication and media studies university of Gujrat
  2. 2. Satellite Television It’s out of sight! 22,300 miles in fact!
  3. 3. What is satellite?An artificial body placed in orbitaround the earth or another planet inorder to collect information or forcommunication.
  4. 4. Satellite TV:Satellite television is an electronicdevice that is used to receive ortransmit television broadcasts from acommunication satellite that isorbiting in space.
  5. 5. •Satellite TV at first place called directbroadcast satellite (DBS) because itbypasses closed-circuit television. it isimmoveable.•On the second place TVRO satellitesystems have a large dish which ismovable.•Closed-circuit television is transmittedby wire to a limited number of people.
  6. 6. •Require subscription fees andlicenses.•DBS is therefore known as narrowcasting, which involves sendingtelevision broadcasts only tosubscribers and not to the generalpublic. Receivers systems to pick upsignals.
  7. 7. NASA and the USAF Space Command are tracking some 600 active satellites plus11,000 dead satellites and pieces of orbiting debris bigger than 10 cm/6 inches
  8. 8. From How Stuff Works
  9. 9. • In order for a satellite to be used for television transmission, it must "hang" over one spot above the Earth.• a receiving dish that is constantly moving, in order to keep up with the transmitting satellite with the speed of earth.
  10. 10. • Satellite TV is transmitted by microwaves.• Avoid abstractions• Survey the place• Position the dish• Satellite Feed Horn Assembly• Satellite recever
  11. 11. A ‘downlink’Much less expensive than the uplink ..
  12. 12. The Clarke Belt• These satellites appear to be in the same position in the sky at all times.• They are directly over the equator but not directly over us.• They are in a line that starts 14 degrees above our Western Horizon.• And rises to 42 degrees elevation in the South
  13. 13. 24 Channels on a Satellite• Numbered 1 to 24• Odd Number Channels are often Vertically Polarized...• Even Number Channels are often Horizontally Polarized.• The antenna must line up with the polarization..
  14. 14. Broadcast SatellitesKu-bands: DirectTV /News trucks, etc.
  15. 15. History
  16. 16. Cable and Satellite: Early Years• Late 1940s: CATV (Community Antenna Television)• Used to bring broadcast signal to people in…..
  17. 17. •Satellites: Envisioned in 1945 byscience fiction writer Arthur C. Clarke•(author of 2001: A Space Odyssey)•1958: First satellite launched (Explorer I)•1960: Echo satellite launched:(geosynchronous orbit)
  18. 18. • mid-1970s. Big Dish (6.5-10 feet) satellites appear in rural areas.• 1994. DBS (Direct Broadcast Satellite) television begins. (3 feet or less)• DirecTV (owned by News Corp.) and EchoStar are the main corporations.• DirecTV merges with EchoStar, 2007-- FCC JUST APPROVED IT BUT NOT QUITE DONE YET
  19. 19. First Communication Satellite Launched :• The first communications satellite, on July 10, 1962,• Telstar 1, was sent into orbit. Funded by American Telephone and Telegraph, ECHO 1, was launched in 1960.
  20. 20. • . The first national network of satellite television, called Orbita , was created in Soviet Union in 1967• The first domestic North American satellite to carry television was Canada ’s geostationary Anik 1 , which was launched in 1972• ATS-6 , the worlds first experimental educational and Direct Broadcast Satellite , was launched in 1974
  21. 21. Hughes HS601Boeing 702 the mostwidely used satellite
  22. 22. Satellite TV in Pakistan• Ptv network• Virtual University Educational TV Network• Aaj tv network• Ary tv network• Eye tv• Atv• Geo• Indus• And many other regional networks
  23. 23. Worldwide• Audience Animal Planet Animal AXN BBC World News Cartoon Network CNBC Pakistan CNN International Discovery Channel ESPN Fashion TV Hallmark Channel HBO MTV Nickelodeon Pogo Ten Sports VH1 WB Channel
  24. 24. • We are not the broadcast engineers …• We are the broadcasters of journalism so we will proceed with• Content• Ownership• Marketing• News production• Entertainment production
  25. 25. Content• What to show and what could not• As any one around the globe can buy and got its services any where so its content necessarily present a clear picture of its society.• Satellite TV become a vital source of English language as its content supports this language.
  26. 26. Ownership• Content is directly effected by ownership of the channel• Policies about each and every which is going to be aired on t.v will be made• So they determine the wide spread effects of satellite tv• Investments are about Rs 2,600 million in satellite TV by the year 2008.
  27. 27. Marketing• Who is sponsoring your program?• What they want you to show?• Whats your preferences?
  28. 28. News and programming• Mallala issue Pakistan media• Delhi case and Indian TV• American head of CIA scandal and western media• Innocence of Muslims and world media• Ptv home v/s ptv world
  29. 29. Pakistaniscenario
  30. 30. Pakistani ;perspective• Satellite channels first landed in Pakistan in 1992• over 50 international channels are available in Pakistan.• PTV, which was expected to chart its own course of excellence but fails to do so.• Privately owned satellite televisions like star and zee had put ptv in dock.
  31. 31. • Privately owned Pakistani satellite channels presenting a negative image of our norms values and traditions
  32. 32. • . Until that time, the only legal satellite TV distribution system in Pakistan was a pay-TV system run by Shaheen Pay TV Company.• Now the system has been upgraded and a good number of international channels are available through its modified MMDS Version – Sun TV .
  33. 33. • Geo TV in particular, has been the exponent of a new vision for middle class Pakistan in which money and glamour are the top agenda items• Satellite music channels, ARY Music, MTV and Channel V spoiling the youth.
  34. 34. • Many middle class viewers have switched to GEO, ARY, Indus , BBC and CNN for news and current affairs, to Zee or Sony for entertainment, to Star, 10 Sports and ESPN for sports, and to Discovery for science, environment and wildlife
  35. 35. Yesterday, today, tomorr ow
  36. 36. Past• Less audience• Less impact• New technology
  37. 37. Present• Satellite broadcasters have entered into the arena of competition
  38. 38. • International broadcasters are there to challenge the news aired by the state TV• spontaneously providing people excess to live coverage of happenings inside and around the globe.
  39. 39. Survey• According to the survey which rates countries on a sliding scale of 0 to 100, with 0 representing the most free and 100 the least free, India scored 48, Pakistan 60, Bangladesh 49, Sri Lanka 46, Nepal 52, Bhutan 62 and the Maldives 68
  40. 40. • These channels have affected old social and cultural values, introduced new fusions of the world.
  41. 41. • Satellite music channels have played an important role in putting pleasure and consumption much higher up the agenda than in the past.
  42. 42. • satellite TV through its talk shows has been to promote far greater openness about issues like human rights, womens rights, questions of choice and career, and relations with others.
  43. 43. English-educated middle classportrays a wide appreciation forsatellite channels
  44. 44. • Today satellite TV has been a means of reinforcing peoples existing preferences• Afshaan , kiran kahani, tanhaiyan, khul ja sim sim,• Ishq e mamnu , muhabat jay bar main, bulbuly,• Ptv cnn bbcMtv, channel V, zee TV star plus geo ……so many
  45. 45. Final words……………………