At 02:54 PM 6/8/2003 +0400, you wrote:
>Mike Harrison wrote:
> > >(2) Poor accuracy with a 5.120 Mhz crystal oscillator.
> > > It gains a few minutes every 12 hours.
> >
> > If you have a mains supply, use this as the timebase -
> > mains has excellent long-term stability in most parts
> > of the world
> >
>
>What are these "most parts of the world" where mains has
>stability is better than stability of crystal oscillators?
>Hmm, Africa, Eastern Europe, Asia, South and Central
>America ...

You forgot to apply the market weighting factor.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.