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Thread: SYKO-message encryption

  1. #1
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    Default SYKO-message encryption

    Hi All,
    I’ve been transcribing my late fathers logbook and there is an entry that reads’ Rec tuning & SYKO’ and ‘Tuning by calib-SYKO’

    The only reference to SYKO I can find is ‘raf message encryption equipment’, does anyone have more information? Was it a piece of equipment or a manual encryption method.

    Back to the transcribing…up to July 1944 now.

    Thanks to all.
    Paul (cambs)

  2. #2
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    Default

    Paul,
    As far as i can make out, it was a manual encryption device consisting of 30 self reciprocal alphabets printed on cards. I've emailed you a picture of one. You can get several hits on Google if you type S.Y.K.O encryption into the serch engine.

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