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From: paulf@shasta.stanford.edu (Paul A. Flaherty)
Newsgroups: comp.dcom.telecom
Subject: Re: "Most Accurate Clock"
Message-ID: <telecom11.118.12@eecs.nwu.edu>
Date: 15 Feb 91 02:27:41 GMT
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X-Telecom-Digest: Volume 11, Issue 118, Message 12 of 12


The GC-1000 appears in the most recent Griefkit catalog.  It's
basically a WWV(H) receiver, slaving a crystal oscillator to that
signal.  An EIA-232 output is optional, and allows you to set machine
clocks. Claimed accuracy is about +-1.0ms; they tend to drift in a
sawtooth pattern.

We use one at Stanford to provide backup NTP service (our primary
source is a more stable reference we receive via BARRNET).

 -=Paul Flaherty, N9FZX      -> paulf@shasta.Stanford.EDU