Biss Key & Power Vu क्या है |

PowerVu -developed by Scientific Atlanta

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PowerVu is a conditional access system for digital television developed by Scientific Atlanta. It is used for professional broadcasting, notably by Retevision, Bloomberg Television, Discovery Channel, AFRTS, ABS-CBN, GMA Network, and American Forces Network. It is also used by cable companies to prevent viewing by unauthorized viewers and non-cable subscribers.

PowerVu has decoders that decode signals from certain satellites for cable distribution services. These decoders can also be used just like the FTA (Free-To-Air) satellite receivers if properly configured. PowerVu is considered very secure since it uses a complicated system to authorize each PowerVu receiver and trace its history of ownership and usage[citation needed]. Most PowerVu users are professional cable or satellite companies, using the service and equipment for signal redistribution, because regular users cannot afford it.

A consumer PowerVu subscription TV service is available for c band dish users in the United States. They are based in Tonasket Washington Rainier Satellite. They offer master broadcast HD and SD cable channel subscriptions to backyard dish owners.





BISS -

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Basic Interoperable Scrambling System, usually known as BISS, is a satellite signal scrambling system developed by the European Broadcasting Union and a consortium of hardware manufacturers.



Prior to its development, "ad hoc" or "occasional use" satellite news feeds were transmitted either using proprietary encryption methods (e.g. RAS, or PowerVu), or without any encryption. Unencrypted satellite feeds allowed anyone with the correct equipment to view the program material.

Proprietary encryption methods were determined by encoder manufacturers, and placed major compatibility limitations on the type of satellite receiver (IRD) that could be used for each feed. BISS was an attempt to create an "open platform" encryption system, which could be used across a range of manufacturers equipment.



 iCAS -

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A Conditional Access system (CAS) is an important component for most digital TV operations. CAS is a software that secure the operators investments by encrypting the signals and ensures that all customers have to pay in order to watch TV.



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