DTH Power Point Presentation


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DTH Power Point Presentation

  1. 1. SEMINAR on<br />DTH (DIRECT TO HOME)<br />
  2. 2. Introduction to DTH<br /><ul><li>DTH stands for DIRECT-TO-HOME television.
  3. 3. The reception of satellite programmers with a personal dish in an individual home.
  4. 4. DTH does away with the need for the local cable operator and puts the broadcaster directly in touch with consumer .</li></li></ul><li>History of DTH in India<br /><ul><li>1996 : DTH services were first proposed in India
  5. 5. 2000: DTH was allowed with new policy
  6. 6. The operators were required to setup earth stations in INDIA within 12 month for getting license of broadcasting whose cost was $2.14 million and will be valid for 10 years.</li></li></ul><li>Basic DTH Network Concepts<br /><ul><li>Transmission Station
  7. 7. The transmission station also known as earth station is used to uplink the contents.
  8. 8. TV channels would be transmitted from the satellite to a small dish antenna mounted on the window or rooftop of the subscriber's home.
  9. 9. Receive Terminal
  10. 10. Receive type solid offset antenna
  11. 11. Interface cables
  12. 12. Set top box</li></li></ul><li>Receiving Terminal Equipments<br /><ul><li>Antenna
  13. 13. Antenna size considerations
  14. 14. Antenna mounts
  15. 15. Low Noise Blocker
  16. 16. Polarization
  17. 17. Dish material and construction
  18. 18. Set Top Box
  19. 19. Input voltage range: 90-250V AC
  20. 20. Frequency connectors: 50Hz ± 5%</li></li></ul><li>WORKING OF DTH<br />
  21. 21. Satellite<br /><ul><li>Geostationary satellites play an important role for DTH systems.
  22. 22. Geostationary satellites are positioned at an exact height above the earth (about 36000 Km).</li></li></ul><li>Communication Channel & Bandwidth<br /><ul><li>The amount of information depends upon the size of bandwidth.
  23. 23. For DTH system communication channel is air and Band-Width is:</li></ul>Ku Band Uplink: 13.75 to 14.5 GHz<br />Ku Band Down links: 10.95 to 11.20 GHz<br /> 11.45 to 11.70 GHz<br /> 12.50 to 12.75 GHz<br />
  24. 24. DTH Application<br /><ul><li>To view pay & free-to-air TV channels of various DTH platform on your home TV.
  25. 25. Doordarshan free-to-air services providing 40 TV channels with no subscription fees is an attractive preposition to people in urban and rural areas. These channels comprises of DD channels and popular channels of news, sports, information, entertainment etc.
  26. 26. One can scan the entire globe with a motorized dish using a CI set top box with CAM modules and watch TV channels of several DTH platforms visible to the dish terminals.</li></li></ul><li>The DTH Category is expected to grow by 680% or so in the next 7 or 8 years.<br />
  27. 27. DTH Benefits<br /><ul><li>Cost effective communication, information and entertainment to all.
  28. 28. Small size terminals can provide up to 4000 TV channels and 2000 radio channels through a click of a button and thus brings world’s latest information, news, and entertainment to your home.
  29. 29. DTH services bypasses mediators and thus content provider comes with customer directly.
  30. 30. DTH services are transparent providing digital quality video, audio, radio, and IP to all at equal prices and other benefits with reliability.</li></li></ul><li>Conclusion<br /><ul><li>DTHconnects urban, rural and remote areas of the country and provides desire information communication, education and entertainment at the click of a button.
  31. 31. Broad band noise will have negligible effect on GMRT. Observations, as the minimum separation distance is 90 meters with the assumption that there is no DTH system in 100 meter circle from any of the GMRT antennas. Care must be taken for arm antennas.</li></li></ul><li>Thank You<br />PREPARED BY:-<br />ANUJ PRABHAKAR LAKRA<br />07BTECE006 <br />B.TECH. ECE 3rd YEAR<br />