[time-nuts] PM-to-AM noise conversion (was RE: New Question onHP3048A Phase Noise Test Set)

Bruce Griffiths bruce.griffiths at xtra.co.nz
Thu Jan 17 17:09:59 EST 2008


Mike Feher wrote:
> Good points Bruce. I know that Dave Allen and Fred Walls had no problem with
> the way I viewed PN issues. However, that was well over 20 years ago. Also a
> good point about the A/D. I should have known better as I designed a
> spectrum analyzer for a company that I worked for around 1975, and for LF
> signals I had it going directly into the A/D. I used digital filtering using
> the Remez algorithm (all elliptic, my favorites), but I believe the
> processing then was by DFT and not FFT. It is a good idea to have different
> points of view for trying to explain things, and I know a lot of times I
> probably take too many short cuts. Apologize for taking it personally. -
> Regards - Mike
>
>  
>  
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>   
Mike

You are not alone in making explanations that you believe are clear
which others however do not find them to be so.
I have also given explanations that I believed to be perfectly clear,
but others didn't find them so.
On reflection it has usually been because of all the "obvious" (to me at
least) assumptions that I left out.

On occasion one finds onself being "reeducated" on a topic one has been
familiar with for decades.
However on reflection one realises that there was nothing in ones post
that indicated that one knew anything about that topic at all.

Bruce



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