Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!ucsd!ucbvax!CS.UCLA.EDU!wales From: wales@CS.UCLA.EDU (Rich Wales) Newsgroups: comp.protocols.time.ntp Subject: Re: Heath clock timing, and building a WWV clock Message-ID: <901031.182937z.06734.wales@valeria.cs.ucla.edu> Date: 31 Oct 90 18:29:37 GMT References: <9010310050.aa26570@huey.udel.edu> Sender: daemon@ucbvax.BERKELEY.EDU Distribution: inet Organization: The Internet Lines: 19 Dave -- Regarding the Heath WWV clock, I've noticed more than a few occasions where my clock will "lock" onto a time that is off by a couple of min- utes, or even a couple of hours. Apparently, the clock sometimes misinterprets the time code pulses and inverts one or more bits. This isn't supposed to happen, I gather, since the clock looks at several consecutive minutes' worth of info before acting -- but as I said, on rare occasion it still does this. Yet another reason, I suppose, not to use the Heath clock as a stratum-1 reference. My clock is not being used for NTP, by the way; it's just a conversation piece at my home. It's a fairly early model, so maybe this problem has been fixed in a later firmware version. Rich Wales // UCLA Computer Science Department 3531 Boelter Hall // Los Angeles, CA 90024-1596 // +1 (213) 825-5683 "The universe is a spheroid region, 705 meters in diameter."