[time-nuts] OCXO Vref (in)stability plot
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Apr 22 12:13:17 EDT 2013
In message <trinity-7a7ee757-89f7-4b92-8884-9435668fef15-1366646349138 at 3capp-gm
x-bs21>, "Jochen Frieling" writes:
>your finding is quite interesting. I would like to replicate your
>measurements on some other voltage sources and Vref sources.
>Could you please elaborate on the setup, settings and acquisition
>process?
There really isn't anything to it: Power the OCXO from a good
clean supply (HP6626A in my case), measure the voltage on the
VREF pin with the best voltmeter you have.
In my case a HP3458A with "NDIG=8", "NPLC=20"
--
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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