Wednesday, 13 March 2013

DTH is what ?

DTH stands for Direct-To-Home television. DTHis defined as the reception of satellite programmes with a personal dish in an individual home.
DTH does away with theneed for the local cable operator and puts the broadcaster directly in touch with the consumer. Only cable operators can receive satellite programmes and they then distribute them to individual homes.
How does DTH work?
A DTH network consistsof a broadcasting centre,satellites, encoders, multiplexers, modulatorsand DTH receivers.
A DTH service provider has to lease Ku-band transponders from the satellite. The encoder converts the audio, videoand data signals into the digital format and the multiplexer mixes these signals. At the user end, there will be a small dish antenna and set-top boxes to decode and view numerous channels.On the user's end, receiving dishes can be as small as 45 cm in diametre.
DTH is an encrypted transmission that travels to the consumer directly through a satellite. DTH transmission is received directly by the consumer at his end through the small dish antenna. A set-top box, unlike the regular cable connection, decodes the encrypted transmission.
How does DTH really differ from cable TV?
The way DTH reaches a consumer's home is different from the way cable TV does. In DTH, TV channels would be transmitted from the satellite to a small dish antenna mounted on thewindow or rooftop of the subscriber's home. So the broadcaster directly connects to the user. The middlemen like local cable operators are not there in the picture.
DTH can also reach the remotest of areas since it does away with the intermediate step of a cable operator and the wires (cables) that comefrom the cable operator to your house. As we explained above, in DTH signals directly come from the satellite to your DTH dish.
Also, with DTH, a user can scan nearly 700 channels!
Does one need to put two dish antennae and pay double subscription per month if one has two TVs [ Get Quote ]?
For multiple connections in the same premises, one can use the same connection. However, every television set will need to have an individual STB.
Also, DTH is a national service and the STBs enable a viewer to change service providers without changing the STB, even if one moves from one city to another.

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