[time-nuts] OT: xtal osc PN
jmiles at pop.net
Sat Sep 18 08:42:53 UTC 2010
> sorry for the OT, but the electronic expertise of the group is
> too good :-)
> I'm looking for ideas and directions (articles and so on) to realize
> very good phase noise xtal oscillator, in the range 20-50 MHz for high
> performance frequency conversion. I would like to understand what
> circuits can be realized (not requiring too much professional and
> modern equipment, test eq. from the 70s-80s is ok) and what is the
> contribution of the active oscillator device, the xtal itself and the
> following buffers.
> Another idea that came on my mind was using digital oscillator (square
> wave, cmos) and then filtering for sine output, if this makes sense
> for a low PN point of view.
> Is there any way to measure the close-in PN of oscillators with an
> amateur setup?
A couple of good links from someone who faced a similar problem:
Also see the links in the last FAQ entry at
-- john, KE5FX
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