[time-nuts] Z9P PPS and RTCMv3 corrections

[Poul-Henning Kamp]

I decided to do a quick test to see if RTCMv3 correction data changes
the PPS output form the Z9P, and to my surprise I found that it does:

It shifts the PPS by about 20 nanoseconds.

In the attached plot, correction data was on from 5k to 10k and from
35k onwards.

There also seems to be a consistent x2-x3 improvement in Modified
Allan Variance.

-- 
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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