Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!wuarchive!zaphod.mps.ohio-state.edu!casbah.acns.nwu.edu!nucsrl!telecom-request From: bcstec!tahoma!kgf2173@uunet.uu.net (Kerry G. Forschler) Newsgroups: comp.dcom.telecom Subject: Re: "Most Accurate Clock" Message-ID: Date: 3 Mar 91 00:27:03 GMT Sender: news@casbah.acns.nwu.edu (Mr. News) Organization: The Boeing Co., BCA FSL, Seattle, WA Lines: 44 Approved: Telecom@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 171, Message 4 of 10 Originator: telecom@delta.eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu Nntp-Posting-Host: hub.eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu In article , Robert.Savery@iugate. unomaha.edu (Robert Savery) writes: > In a recent message, Steve Shankman (sshankman@mis.arizona.edu) writes: > > A while ago I was at the planetarium at our university, and I saw an > > interesting clock made by Heathkit. The clock was called "Most > > Accurate Clock" and had a shortwave receiver built in which monitored > > 5, 10, and 15 MHz (WWV?). {Popular Electronics} magazine, March 1991, page 73, gives a hands-on review of the Heathkit Most Accurate Clock. Here's what I gleaned from the article: o the author was impressed with it, o keeps time to within 10 ms or better of WWV, o has an RS-232C output which provides time and date data in ACSII format, o the RS-232C output is standard with the pre-assembled unit, but must be bought as a separate unit for the kit, o Heath/Zenith interfacing software is extra ($49.95), o requires from 4 to 30 minutes to calibrate itself the first time turned on, o has a built-in telescoping antenna, o has an option for an external antenna, o a highly-suitable tuned-dipole outdoor antenna can be bought for $99.95, o if signal strength is too weak to always receive WWV it uses its own internal crystal-controlled oscilliator to control time, o runs on a 12-volt battery or 117/220 VAC, o has a built-in speaker so you can listen to the audio portion of WWV, o the audio is controled by a volume control and can be turned off, o has options for 12/24 hour format, daylight savings time, etc, o the year is set by a DIP switch and must be changed each year. I hope this is helpful. Disclaimer: I have no connection with Heath Co. or {Popular Electronics} magazine. Kerry G. Forschler | Voice: 206-237-1274 (work) Boeing Commercial Airplanes | Voice: 206-235-1435 (home) P.O. Box 3707, M/S 96-02 | UUCP: ..!uunet!bcstec!tahoma!kgf2173 Seattle, WA 98124-2207 | Boeing net: kgf2173@tahoma