[time-nuts] The Nature of Noise

[paul swed]

Bob,
I am about to get myself into a lot of trouble. If the noise is coherent in
some way then its not really noise anymore its a signal or its filtered in
some way as compared to C.
There you go I feel the hot emails on the way already.
Should be a good read.
Regards
Paul
WB8TSL

On Thu, Jun 30, 2016 at 2:30 PM, Bob Stewart <bob at evoria.net> wrote:

> With my recent Cs problems, I've been wondering about the subject of noise
> generation and measurement.  Specifically, my question is this:  Let's say
> that I have 3 disciplined oscillators: A, B, and C.  So, I use the same
> 5370 to create a 1000 second ADEV and discover that the 1s noise value
> between A and B is low, while the 1s noise between A and C, as well as B
> and C is high.  Can I then say that both A and B are low noise devices?  Or
> is it possible that even though I'm measuring 1000 points, both A and B are
> high noise devices, but somehow are noisy in the same exact way, and it's
> actually C that's the low noise oscillator?
>
> Bob -
> AE6RV -----------------------------------------------------------------------------------
> GFS GPSDO list:
> groups.yahoo.com/neo/groups/GFS-GPSDOs/info
> _______________________________________________
> 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.
>