bob wrote:

roward to decode." I was not suggesting it would not be labour
intense. It could turn out to be a royal pain in the a$$, however, if
it's simply inversion with a variable mixer freq, there's no real
security there.

The problem may be that the tick usually has nothing to do with the
number of frequency changes. The inversion frequency may change
several hundred times per minute, and the tick is just used to keep in
sync.



regards - Ralph

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