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For other uses, see Scrambler.

Descramble in Cable television context is the act of taking a scrambled or encrypted Video Signal one that has been processed by a scrambler and provided by a Cable Television company for Premium television services and is then supplied over a Coaxial cable and delivered to the household where a Set-top box reprocesses the signal, thus descrambling it making it available for viewing on the Television set. A descrambler is a device that restores the picture and sound of a scrambled channel. A descrambler must be used with a Cable converter box to be able to unencrypt all the premium & pay-per-view channels of a Cable Television System.


  • Bartlett, Eugene (1990). Cable Television Technology & Operations -HDTV and NTSC Systems. New York, New York: McGraw-Hill, Inc. pp. 8–9. ISBN 0-07-003957-7. 

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Related Technologies: