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Videocipher II satellite descrambler stand-alone box sold by General Instrument. VideoCipher is a brand name of analog scrambling and de-scrambling equipment for cable and satellite television invented primarily to enforce Television receive-only (TVRO) satellite equipment to only receive TV programming on a subscription basis.
When a descrambler is added to the Cable Converter Box in the same chassis, it is referred to as a Converter/Descrambler or sometimes a Combination Unit, and is a type of Set-top box, it allows : local broadcast channels, basic cable channels, authorized premium channels, "Pay-Per-View" (PPV), and “Video On Demand” (VOD) services to be viewed.
Other ways of cable theft were using a cable TV converter box (also known as a descrambler or "black box") to steal all channels and decrypt pay-per-view events, whereas a normal converter would only decrypt the ones paid for by the customer. The cable companies could send an electronic signal, called a "bullet", that would render illegal ...
Videocipher II satellite descrambler. General Instrument produced receivers for old C and Ku band satellites. They also produced Videocipher units as well as digital equipment. 4DTV was a system for picking up free and encrypted analog and digital satellite subscription channels. It also included an interactive guide.
Zenith was the first company to experiment with subscription television, launching their Phonevision system with experimental Chicago station KS2XBS (originally broadcasting on Channel 2 before the Federal Communications Commission forced them to relinquish it to WBBM-TV). Their experiment involved a descrambler box mounted on the television ...
The manipulations are reversed by a descrambler at the receiving side. Scrambling is widely used in satellite, radio relay communications and PSTN modems. A scrambler can be placed just before a FEC coder, or it can be placed after the FEC, just before the modulation or line code.
Captain Midnight Message seen in 1986, as superimposed on the SMPTE color bars Date April 27, 1986 ; 38 years ago (1986-04-27) Time 00:32 EST (05:32 UTC) Duration Four and a half minutes Location Ocala, Florida, U.S. Type Broadcast signal intrusion Motive To protest against charges for access to scrambled satellite channels Target Home Box Office (HBO) Participants John R. MacDougall Outcome ...
An older Nagravision system for scrambling analogue satellite and terrestrial television programs was used in the 1990s, for example by the German pay-TV broadcaster Premiere. In this line-shuffling system, 32 lines of the PAL TV signal are temporarily stored in both the encoder and decoder and read out in permuted order under the control of a ...