Jan-Erik Soderholm XA (TN/PAC) wrote:
> Manchester code isn't a "clock" signal at all, is it ?
> I thought it was a special coding to get a zero DC level
> on the transmission medium, but with no builtin clock info
> as such, or ? The syncing/framing has to be done after the
> manchester decoding, I think.

Manchester does have an average DC level of 1/2, which can be useful in some
applications, like radio transmission.  However, machester also mixes the
clock and data into a single stream.  A manchester stream of any length can
be sent without the need to re-sync.  A receiver can infer the bit rate once
both a long and short interval have been seen.


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