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Article #4057Re: Will WWV/WWVH always be here?
From: George Robbins
Date: Thu, 11 Jan 1990 04:05
Date: Thu, 11 Jan 1990 04:05
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In article <7319@chaph.usc.edu> cyamamot@aludra.usc.edu (Cliff Yamamoto) writes:
> I ask because I'd like to get one of Heathkit's Most Accurate Clock kits.
> I remember listening to WWV back in elementary school so I know its been
> here a while. How long has the embedded time format been used in WWV?
> What year was WWV started? Does anyone think the NBS has any plans or
> reasons to cancel WWV or WWVH transmissions? I hope it stays around for
> another 50 years at least.
I think they'll be around for a while. The details of the time codes and
exact schedule of announcements, tones, etc, changes from time to time
but not very quickly. They've also discontinued transmitting on a couple
of frequences that they used to use - 25MHz and 20Khz (WWVL) if I recall...
The Heath Clock is fun to build, but not especially challenging. It only
picks up 3 of the 5 currently used frequencies but the receiver circuitry
is a good bit better than something like the Radio Shack Time Kube. The
RS232 option kind of fakes RS232 from a single power supply. May or may
not work for you.
This year's catalog lists a new "Technical Manual", but I haven't gotten
up the energy to order one yet.
I believe there's a Timeline of WWV history in the booklet they send you
if you ask for information, but I don't have it handy...
--
George Robbins - now working for, uucp: {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department fone: 215-431-9255 (only by moonlite)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watserv1!watmath!iuvax!rutgers!cbmvax!grr From: grr@cbmvax.commodore.com (George Robbins) Newsgroups: sci.electronics Subject: Re: Will WWV/WWVH always be here? Keywords: WWV, WWVH, Heathkit, clock Message-ID: <9285@cbmvax.commodore.com> Date: 11 Jan 90 04:05:32 GMT References: <7319@chaph.usc.edu> Reply-To: grr@cbmvax.commodore.com (George Robbins) Organization: Commodore, West Chester, PA Lines: 29