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Why does the set top box provided by cable operators in India require a smart card containing chip while those provided by doordarshan i.e DD Direct don`t require any such smart card.

Susendeep D
2014-02-16 16:27:29
Usually,a smart card is required for decrypting the encrypted signals that pay channels use to protect their content from being stolen or tapped by any other.But since,DD provides free to air(FTA) channel,hence,might be its STBs(set top box) doesn't have those cards.
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Hovsep A
2014-02-05 12:42:09
perhaps the provider signed some kind of contract so that smart card to be used for a certain period of time or all the time