[time-nuts] Low noise frequency multiplication

[Stephan Sandenbergh]

Hi Bruce,

Thanks for correcting me. It's so easy to ignorantly carry along a mistake
as simple as this one.

Thanks again,

Stephan. 

> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Dr Bruce Griffiths
> Sent: 02 March 2007 02:12 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Low noise frequency multiplication
> 
> Stephan Sandenbergh wrote:
> > Darn, the table is a mess. Here is the corrected one:
> >
> > LVPECL Outputs
> > Hz	dBc/Hz
> > 1	?
> > 10	-127
> > 100	-145
> > 1k	-153
> > 10k	-158
> > 100k	-158
> > 1M  	-158
> >
> > 10MHz OCXO
> > Hz	dBc/Hz
> > 1	-100
> > 10	-130
> > 100	-152
> > 1k	-160
> > 10k	-165
> > 100k	-165
> > 1M  	-165
> >
> > 10x Multiplied
> > Hz	dBc/Hz
> > 1	-80
> > 10	-110
> > 100	-132
> > 1k	-140
> > 10k	-145
> > 100k	-145
> > 1M  	-145
> >
> >
> Stephan
> The last table above should read:
> 
> 10x Multiplied
> Hz	dBc/Hz
> 10	-80
> 100	-110
> 1k	-132
> 10k	-140
> 100k	-145
> 1M	-145
> 10M  	-145
> 
> Bruce
> 
> > Diverence 	between 10MHz x10 Multiplied and AD9512
> > Hz	dBc/Hz
> > 1	17
> > 10	13
> > 100	13
> > 1k	13
> > 10k	13
> > 100k	13
> > 1M  	13
> >
> >
> > Regards,
> >
> > Stephan.
> >
> >
> 
> 
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