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. 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. Suitable for different countries or areasĪll Specifications Are According to Related Standard Tests, Since The Growing Development of Technology, If There is Any Change to The Above Specfication Are Without Notice.Freebase (3.00 / 1 vote) Rate this definition: Group calls, all calls and selective calls Hand microphone DTMF with loudspeakers, receiving indicator and volume adjuster We are working every day to make sure our community is the best Radio Hobbyist's site. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. Voice scrambler can reinforce the safety of communication, 8 groups scramblers, DTMF encode&decode,and also can build data transfer.įront panel and radio body flexible for separation The WorldwideDX Radio Forum was originally established in 2001. Use remote control function to lock, power on/off, monitor, and change the current frequency, CTCSS/DCS of the remote radio. In the emergency communication, improve the stability of communication. Use the repeater function of KG-UV920P, it can realize the signal repeater from V bandĬompletely Seperated Two Operation Systems, Dual Track, Dual Speaker, even oneĪrea can not work well, the other area can receive/transmit well. Unidirectional or Two Way Cross Band Repeaterĭual Frequency Display, Dual Independant Operation System

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