Date: Wed, 12 Mar 2003 07:14:38 +0100 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: "Andrew P. Lentvorski, Jr." <bsder@allcaps.org> Cc: James Satterfield <james@uberduper.com>, current@FreeBSD.ORG Subject: Re: Time drift. Message-ID: <23484.1047449678@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 11 Mar 2003 16:24:57 PST." <Pine.LNX.4.44.0303111613500.11177-100000@mail.allcaps.org>
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In message <Pine.LNX.4.44.0303111613500.11177-100000@mail.allcaps.org>, "Andrew P. Lentvorski, Jr." writes: >An $8.00 wristwatch has much better time accuracy that your multi-$100 PC. That's because the crystal in your wristwatch is cut specially so that it has a flat temp-co at about 23-16 C, whereas the xtal in your computer is has a gradient all the way from 0 to 70 C. See: http://www.corningfrequency.com/library/vig/Vig-tutorial_files/frame.htm -- 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. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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