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Data whitening can be considered a kind of data randomizer. Some details regarding this feature... - This feature is available in fw version 3.44 and later. - You can set the Data Whitening ON/OFF from the Additional setup sub-menu -Transmitter picks up a randomized seed character (based on processor's free running clock) and inserts it in front of the user data. -The rest of the user data in the radio frame is then "whitened" using the seed as the start key -The receiver checks the first received character (=seed) and decodes the trailing message accordingly back to original - This functionality must be enabled in every modem in the network, could be considered equally to the FEC on this point of view.
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