[time-nuts] Comparing 10 MHz Oscillators at 10 GHz 10 to 100 MHz multiplier

[paul swed]

Very helpful

On Wed, Jan 5, 2011 at 11:03 AM, Paramithiotti, Luciano Paolo S <
luciano.paramithiotti at hp.com> wrote:

> As requested I have add a PCB bottom side picture.
> If someone want some more informations or any help please ask me directly.
> See:
> http://www.timeok.it/files/10_to_100_mhz_multiplier.pdf
>
> I remember you the Maser use a multiplier chain from 5 MHz to 1400Mhz as
> first LO in the internal receiver used for PLL the FX to 1.420.xxx .
>
> Thank you, Luciano
>
> Luciano P. S. Paramithiotti
>
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Brucekareen at aol.com
> Sent: mercoledì 5 gennaio 2011 0.09
> To: time-nuts at febo.com
> Subject: [time-nuts] Comparing 10 MHz Oscillators at 10 GHz
>
> 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  West,
> etc., modules that were used as local oscillators in commercial microwave
>  systems.
>
> I was about to ask Luciano for more information on his coil forms,
> amplifiers, and RF chokes when it occurred to me that loop-noise in the PLOs
>  might force a very narrow bandwidth and correspondingly long observation
>  time.
> Have members of the list been successful with this technique?
>
> While most common PLO modules require an input signal in the 100
> MHz-range, I have heard of versions that lock directly to a 10 MHz input.
> Is anyone
> familiar with these and how difficult it would be to modify  conventional
> oscillators to securely lock to 10 MHz?
>
> Bruce, KG6OJI
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>