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From: clements@bbn.com (Bob Clements)
Newsgroups: comp.protocols.time.ntp
Subject: Re: Heath clock timing, and building a WWV clock
Message-ID: <60486@bbn.BBN.COM>
Date: 31 Oct 90 19:53:15 GMT
References: <9010310050.aa26570@huey.udel.edu> <901031.182937z.06734.wales@valeria.cs.ucla.edu>
Sender: news@bbn.com
Organization: Bolt Beranek and Newman Inc., Cambridge MA
Lines: 39

wales@CS.UCLA.EDU (Rich Wales) writes:
>
>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.
>
> ...  It's a fairly early model, so maybe this
>problem has been fixed in a later firmware version.

Yes, it has.  I've never seen my two do this since putting new
processor chips in about a year ago, and I often saw it before.
Someone on this list told me about the upgrade when I grumbled
about the problem.

Aha! I've just found the relevant old mail, info correct as of a
year ago last June:

     To: [deleted]
     Subject: Heath parts
     Cc: clements@BBN.COM
     Message-Id: <8906052222.AA00180@k1bc.UUCP>
     Date: 5 Jun 89 22:22:20 EDT (Mon)
     From: Bob Clements <rcc@k1bc.uucp>
     
     
     The microprocessor for the clock is Heath part 444-293-1
     price $12.25 each.
     Phones:  Ham-radio (knew about the clock) 616-982-3296.
     	      Parts orders (charge cards OK)   616-982-3571.
     
     Bob, K1BC


And there are some fixes in the serial port handling (which uses
another copy of the same chip) so you may want to order two of
them per clock.  Sorry, the details have exponentially decayed in
the grey cells.

Bob Clements, K1BC, clements@bbn.com