[time-nuts] ...Your thoughts on the Trimble Resolution T?

Poul-Henning Kamp phk at phk.freebsd.dk
Fri Mar 31 05:45:36 UTC 2006


In message <20060331031016.83271.qmail at web50706.mail.yahoo.com>, Normand Martel
 writes:

>Performance using clock granularity message:
>
>  Better than 2ns, 1 sigma
>  Better than 6ns, 6 sigma
>
>Performance NOT using clock granularity message:
>
>  Better than 10ns, 1 sigma
>  Better than 20ns, 6 sigma
>
>What's that clock granularity message?

That's the "negative sawtooth" correction.

>For me, It looks like a message telling the actual
>error of one particular 1PPs pulse. Does it sound
>right?

Exactly.

-- 
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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