Date: Thu, 8 Jan 1998 18:06:47 +0900 (JST) From: Michael Hancock <michaelh@cet.co.jp> To: FreeBSD Hackers <Hackers@FreeBSD.ORG> Subject: Re: GPS for xntpd Stratum 1 servers Message-ID: <Pine.SV4.3.95.980108175050.3352A-100000@parkplace.cet.co.jp> In-Reply-To: <199801080323.VAA09484@nospam.hiwaay.net>
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On Wed, 7 Jan 1998, David Kelly wrote: > If you are on the 15th floor of a 30 floor building then you are going > to have troubles with the GPS in any case. Any view out the window will > have less than half the sky visible. Sometimes there may not be enough > satelites visible for a lock. Yeah, Mike Smith suggested RS-232 <==> Fiber <==> RS-232 to the roof, but unfortunately doing that costs an arm and a leg in this concrete jungle. Er, maybe just a leg these days. We'll just have to settle for having consistent time. Unless, I can find a dialup or radio time source here in Tokyo. > Was it the GPS-30PC TAPR bought closout from Garmin? $99, Don't know, I just came across the site last night. > http://www.tapr.org/gps/index.html. *Exactly* the GPS you would want for > this task. Bare minimum GPS in a weather tight case with integral > antenna. No display. Only has NEMA serial interface. -- michaelh@cet.co.jp http://www.cet.co.jp CET Inc., Daiichi Kasuya BLDG 8F 2-5-12, Higashi Shinbashi, Minato-ku, Tokyo 105 Japan Tel: +81-3-3437-1761 Fax: +81-3-3437-1766
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