On Sunday, May 13, 2007 8:31 PM [GMT-3=CET],
Jinx  wrote:

> > > Another improvement you may wish to consider is decoding the
> > > Manchester stream while the data is being received
> >
> > That would be quite possible to do that, given the longish bit time of
> > 1ms. All in favour of concurrent events where possible. Probably
> > wouldn't change this one, but I'm working on a bi-directional
application
> > that can, for example, request a re-send if data is munted
> >

Talking about balanced transmission, Alfredo Squieri "alfredo AT
metronic.com.ar", from PiclistLatina, has suggested to split the byte. Both
Upper an Lower nibble are the upper nibble of the new two bytes. The lower
nibble is 1010 for both new bytes. eg desired byte: 11000011  the new two
bytes: 11001010 00111010

This is an improvement from sending the word without encoding, but is much
simpler than manchester, i think.

Anyway, I'm still thinking on Scott proposal. How can the receiver change
the period of a bit dinamically?. (Zen) I'd better re-study Nyquist, Shanon,
SNR, etc!

Regards,
Dennis.

ps: 500mt with a 10 elements Yagui with reflector for 419MHz. wenshing
modules.




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