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Date:      Thu, 23 Aug 2001 06:43:26 +0200
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Warner Losh <imp@harmony.village.org>
Cc:        Thierry Herbelot <thierry@herbelot.com>, hackers@FreeBSD.ORG
Subject:   Re: clock synchronization quality via NTP ? 
Message-ID:  <46651.998541806@critter>
In-Reply-To: Your message of "Wed, 22 Aug 2001 20:42:41 MDT." <200108230242.f7N2gfW80510@harmony.village.org> 

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In message <200108230242.f7N2gfW80510@harmony.village.org>, Warner Losh writes:

>: More precisely : is it reasonable to hope having a system clock not
>: farther from the GPS clock by more than 50 micro-seconds ?

50 microseconds should be feasible provided that you either
provide a very stable temperature or replace the 14.318 MHz
xtal on the motherboard with a something more stable.

>PC hardware really sucks for timing.

Tell me about it...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@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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