[time-nuts] Re: Can the ADEV of a GPSDO output ever be lower than the minimum of the ADEV of the internal oscilator and the ADEV of the GPS PPS?

[Bob kb8tq]

HI 

> On May 10, 2022, at 5:42 AM, Attila Kinali <attila at kinali.ch> wrote:
> 
> On Tue, 10 May 2022 12:49:27 +0200
> Erik Kaashoek <erik at kaashoek.com> wrote:
> 
>> Error bars like this?
> 
> Exactly...
> 
> And what you see is, that beyond ~300s the difference is not statistically
> significant anymore and beyond 700s the curves are indistinguishable.
> 
> I'm a bit surprised that a TCXO (with control loop) is good enough for 100s.
> Even if the difference to the PPS is only a factor of 1.6. 
> That's a quite decent oscillator.

or it’s in a *very* unusual temperature environment ….

Bob

> 
> 				Attila Kinali
> -- 
> In science if you know what you are doing you should not be doing it.
> In engineering if you do not know what you are doing you should not be doing it.
>        -- Richard W. Hamming, The Art of Doing Science and Engineering
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