Paul: You can have some fun with this:
A vertical line current flow in the neighborhood of 30,000 amperes,
pulse risetime on the order of 2-5 microsec, fall time about 40. Kind of
a giant magnetic play toy.
Don Latham
On 2020-12-03 11:23, paul swed wrote:
Well Bob what an unusual comment about large magnetic fields. It just
so
happens that maybe I actually had one about 8 weeks ago. Its called a
lightning strike about 60' away. Just found the actual 100' pine tree 2
days ago. I had been looking but it sounded like it hit in the opposite
direction.
The strike did wipe out a nvr and copper networking. But it did not
seem to
impact the the cesiums or many many other pieces of equipment.
The 5065 is still super stable.
Regards
Paul
On Thu, Dec 3, 2020 at 11:57 AM Bob kb8tq <kb...@n1k.org> wrote:
Hi
I don’t believe that the quantum transitions are sensitive enough to
minor
temperature
shifts to account for a 1 or 2 ppb sort of shift….. Magnetic field, (
giant magnetic play toy
moved next to Rb … ) yes that will do the trick, but temperature …
tough
to do …
Everything I can find that documents what’s what is behind this or
that
pay wall. I’m
not $80 interested enough in the answer :)
Bob
> On Dec 3, 2020, at 10:51 AM, Poul-Henning Kamp <p...@phk.freebsd.dk>
wrote:
>
> --------
>
> Could it be the thermostat circuits have shifted so you run at a
> different temperature now ?
>
> --
> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
> p...@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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Dr. Don Latham AJ7LL
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