[time-nuts] Comparing 10 MHz Oscillators at 10 GHz
Ulrich Bangert
df6jb at ulrich-bangert.de
Wed Jan 5 08:17:33 UTC 2011
Rick,
I guess what you are saying applies only to the case where one tries to mix
down to DC ??
73s de Ulrich, DF6JB
> -----Ursprungliche Nachricht-----
> Von: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] Im Auftrag von Rick Karlquist
> Gesendet: Mittwoch, 5. Januar 2011 01:24
> An: Discussion of precise time and frequency measurement
> Betreff: Re: [time-nuts] Comparing 10 MHz Oscillators at 10 GHz
>
>
> Brucekareen at aol.com wrote:
> > Luciano Paramithiotti's January 1 post about his 10-to-100 MHz
> > multiplier project reminded me of past musings about using
> two 10GHz,
> > phase-locked oscillators to compare the 10MHz outputs of my
> T-bolt and
> > LPRO so I could quickly adjust the latter by observing the
> mixed 10
> > GHz signals with a microammeter. I am talking about the
> California
> > Microwave, Frequency
>
> It has been my experience that most sources have too much
> jitter to multiply from 10 MHz to 10 GHz and expect to
> compare with a phase detector, even if the two 10 MHz sources
> are phase locked to each other, let alone independent.
>
> Rick Karlquist N6RK
>
>
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