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3-out-of-6 code

The 3-out-of-6 code is a coding method

used in radio transmission to achieve reliable parities. For this purpose, the level fluctuations on the receiving side must be kept as low as possible. In the 3-out-of-6 code, four-bit

long source symbols are converted into 6-bit long code words.This means that one third of the codeword, namely 4 out of 6, is inefficient. On the other hand, the generous conversion avoids uncertainties in the transmission.

The 3-out-of-6 code is used, among other things, in the wireless variant of the M-Bus, the Wireless M-Bus. In the wireless meter bus, the 3-out-of-6 coding maps useful bit sequences on specially selected sequences, whereby fixed bit sequences are used for the radio transmission.

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Englisch: 3-out-of-6 code
Updated at: 06.09.2010
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