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A descrambler is a device that unscrambles the encoded signal and restores the picture and sound of a scrambled channel. Typical modern cable boxes include some form of descrambling ability. Such a cable box must also be addressable (see below) in order to be told to descramble the signal for a given channel.
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.
Newer LNBFs in use by DirecTV, called SWM (Single Wire Multiswitch), are used to implement single cable distribution and use a wider frequency range of 2–2150 MHz. [citation needed] The satellite receiver or set-top box demodulates and converts the signals to the desired form (outputs for television, audio, data, etc.). [17]
DirecTV-1R was launched on October 9, 1999, aboard a Sea Launch Zenit-3SL launch vehicle. It was the first satellite used to broadcast local channels for DirecTV in major DMAs , and was positioned at 101.2° W when it first entered service. [ 29 ]
A typical modern set-top box, along with its remote control - pictured here a digital terrestrial TV receiver by TEAC. A set-top box (STB), also known as a cable box, receiver, or simply box, and historically television decoder or a converter, [1] is an information appliance device that generally contains a TV tuner input and displays output to a television set, turning the source signal into ...
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 ...
A digital TV converter box. A digital television adapter (DTA), commonly known as a converter box, DTV converter , or decoder box, is a television tuner that receives a digital television (DTV) transmission, and converts the digital signal into an analog signal that can be received and displayed on an analog television set.
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.