[time-nuts] 1PPS for the beginner

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Aug 14 11:12:23 EDT 2018

In message <0C753B64-0C67-446F-B963-732B397A6E76 at n1k.org>, Bob kb8tq writes:

> I believe that NIST was the first to spot this and document it with
> lots of plots. I could be wrong about that.

I may have been first there.  At least a Motorola person told me
that it was the curves I'd sent them that got NIST interested.

The curves in question were actually a bug-report:  The first version
their firmware announced the offset of the previous rather than the
next 1PPS flank.

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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