[time-nuts] GPSDO recurring Time Interval aberation

Sat Dec 20 20:43:24 UTC 2008

In message <unkqk45chmtca9aj54alqd3k24ctbf1ei5 at 4ax.com>, Matt Osborn writes:

>I've been tracking my Fury GPSDO (ROM version 1.21) equipped with an
>Isotemp OXCXO134-10 oscillator for a couple of weeks now and have
>noticed that the Time Interval (TI) spikes around 20 to 40 nsec
>everyday at 17:45 UTC (11:45 AM CST local time).

Likely a bad constellation or multipathing of a low satellite.

See which satellites come into or out of view around that time, and
consider lifting your horizon or blacklisting that particular satellite
during that time period.

-- 
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.