[time-nuts] TIC resolution impact on GPSDO's performance

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Dec 26 08:14:12 UTC 2006


In message <4590BB56.5070809 at xtra.co.nz>, Dr Bruce Griffiths writes:
>Poul-Henning Kamp wrote:
>
>> I think what you are trying to express is that the frequency from
>> the internal Xtal (at times) is in an overtone of the 1Hz PPS, which
>> gives rise to hanging bridges.
>>
>>   
>Poul-Henning
>
>Surely you mean harmonic? An overtone is not necessarily a harmonic.

I meant overtone, becuase they are not in any harmonic relationship,
the XO is wandering around whereas the (ideal) PPS is, supposedly,
rock stable.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.




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