[time-nuts] Re: Phase noise with a lock-in amplifier.

David Kirkby david.kirkby at onetel.net
Fri Apr 15 20:39:47 EDT 2005

David Kirkby wrote:

> The outputs from the mixer, assuming the oscillator was perfect would be 
>  the sum (2f) and difference (DC). But since the oscillator has noise on 
> it the noise will not mix to DC since the noise will arrive a

What I mean is the two noise inputs to the mixer will not be correlated 
if the cable is long enough.
Dr. David Kirkby,

Please check out http://www.g8wrb.org/
of if you live in Essex http://www.southminster-branch-line.org.uk/

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