[time-nuts] Re: E1938A phase noise improvement

[Bruce Griffiths]

Was it related to the cause of the hump in the PN plot vs offset frequency that the E1938A exhibits?

Bruce
> On 26/12/2021 17:56 Richard (Rick) Karlquist <richard at karlquist.com> wrote:
> 
>  
> I'm sure I said that ... a long time ago.  I can't remember now what the 
> fix was, but I am fairly sure it would only apply to phase noise at
> more than 1 kHz offset.  If anyone can jog my memory about it I might
> be able to remember the details.
> 
> Rick N6RK
> 
> On 12/25/2021 2:09 PM, Stewart Cobb wrote:
> > Rick Karlquist mentioned some time ago that the phase noise of the E1938A
> > could have been improved by a simple change, but the production managers
> > were unwilling to apply that change because there was no customer demand
> > for it.
> > 
> > What was that change, and is it feasible for a skilled hobbyist to make
> > that change on an individual existing unit or two?
> > 
> > Cheers!
> > --Stu
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