John Miller ) writes:
Tony Calguire wrote:

Yes, the topic is WWVB, but WWV and WWVH *do* have a digital signal
which can and is decoded by computers and auto-setting clocks.

Where can one buy an auto-setting clock that uses the WWV data?

I don't know.

But, a quarter century ago, it was WWV that got the focus for
self-setting clocks. I thought it was because the HF stations (I know
CHU here in Canada did it too) had provided digital data before WWVB,
but I checked Don Lancaster's TTL Cookbook, from 1974, actually gives
more information about WWVB. I'm sure Don Lancaster detailed an actual
construction article in Radio Electronics around that time, but my memory
says it was for WWV,

Certainly, up until recent times, the one commercial self-setting
clock that comes to mind was a Heathkit, "The World's Most Accurate
Clock", that used WWV.

Using WWVB, at least for consumers, is a relatively recent thing, like
in the past decade. I'm not sure why they moved from WWV to WWVB, but
clearly there is more penetration of WWWV-based clocks than WWV-based
clocks. I bought one for $20 Canadian in February, and that sure beats
any WWV-based clock in terms of cost.

Michael