Steve Tranter
2.16 Conditional Access, Simulcrpt snd Encryption Systems
2.16.1 Introduction
Conditional Access (CA), as the term implies, is a mechanism by which television services can only be accessed on the provision that certain predetermined conditions have been met. CA is required wherever there is an open transmission of video or data content to a target set of receivers over an insecure broadcast channel. Using an insecure broadcast channel means that other receivers, in addition to the intended audience, could gain access to the transmission. CA systems are usually associated with securing traditional, broadcast pay television services, such as those provided by satellite, cable and terrestrial transmission systems, and are used to ...
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