The land of what? Land of Joy… It might sound like a North Korean diktat but it’s Ducati marketing speak for Scrambler ownership and normally the sort of mumbo-jumbo that would have most right-thinking folk recoiling in horror. A scrambler in this context has nothing to do with encrypting, as the intent is not to render the message unintelligible, but to give the transmitted data useful engineering properties.Dispatches from the Land of Joy #1. 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. Scrambling is widely used in satellite, radio relay communications and PSTN modems. The manipulations are reversed by a descrambler at the receiving side. In telecommunications and recording, a scrambler is a device that manipulates a data stream before transmitting. Some modern scramblers are actually encryption devices, the name remaining due to the similarities in use, as opposed to internal operation. Examples of the latter might include removing or changing vertical or horizontal sync pulses in television signals televisions will not be able to display a picture from such a signal. Scrambling is accomplished by the addition of components to the original signal or the changing of some important component of the original signal in order to make extraction of the original signal difficult. Whereas encryption usually refers to operations carried out in the digital domain, scrambling usually refers to operations carried out in the analog domain. In telecommunications, a scrambler is a device that transposes or inverts signals or otherwise encodes a message at the transmitter to make the message unintelligible at a receiver not equipped with an appropriately set descrambling device. Freebase Rate this definition: 3.0 / 1 vote
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