seminar on direct to home for 3rd year uptu student and all those who require it.....

1. WELCOME

2. ARYAN INSTITUTE OF TECHNOLOGYGHAZIABAD SEMINAR DTH

4. The reception of satellite programmers with a personal dish at individual home.

6. The first person who invented the technology for DTH was sir ARTHURE CLARLES CLARKE , a british inventor in late 1946.

7. The DTH service was first proposed in INDIA in 1996 , but was not approved due to concern over national security.

10. DTH network consist of

11. Broadcasting center .

12. Satellite encodes.

13. Multiplexer.

14. Modulator.

16. Uplink satellite dishes are large in size which provides accurate aiming and increase signal strength

19. A typical satellite can have 32 transponder for Ku band (10 Ghz to 18 Ghz) and 24 transponder for C band( 4 Ghz to 8 Ghz).

20. A typical transponder can have bandwidth between 27 Mhz to 50 Mhz.

22. It is parabolic reflector it receives the signal and fed to the LNBF(low noise band down converter) ,which works as a receiver for signal transmitted by satellite.LNBF Parabolic reflector ( 60 to 120 cm )

24. It collect the signal from minidish.

25. It receive the signal from Ku band and down convert to radio frequency signal.

28. The coaxial cable connect LNBF to set top box.

32. GENERAL BLOCK DIAGRAM OF SETTOP BOX DISH ANTENNA A DECODER AMPLIFIER TUNER DEMODULATOR V MICROCONTROLLER CAS SYSTEM

35. In DTH , TV channel are directly transmitted from satellite to a small dish antenna at the subscriber home.

37. DTH technology is more resistive to the weather condition ,it can work in any type of environment.

39. The DTH market in INDIA is relatively incresing day by day and in next 5 years (by 2014 ) we will be able to add another 30 million subscriber.

41. DTH has made the hopes for people of the rural area to come true.

42. It help to develop the economy condition of our country