Broadcasting Atomic Clocks (was Re: hayes chronograph)

From: Shawn T. Rutledge <ecloud_at_bigfoot.com>
Date: Thu Jul 26 14:27:00 2001

> > There is a transmitter in Colorado, but I am not aware of any hobby
> projects
> > to take advantage of it. They did start building VCRs that could set

<snip>
>
> timezone than the user. This would result in the clock being off by an
> hour (or for some folks in Arizona, off by an hour for part of the year).

I have an alarm clock which sets itself from this signal. Of course the
first such clock (old enough to be on topic, even) AFAIK was the Heathkit
Most Accurate Clock. But those cost big bucks. Nowadays I'm seeing more
commercial clocks which do this, at reasonable prices.

WWV is broadcast on at least 5, 10 and 15 MHz (exactly); maybe other
frequencies too, I'm not sure. And I think some of the transmitters are
in other places besides Colorado, the idea being that everywhere in the US
you can always receive at least one of them. I'm not sure which freq(s)
these clocks listen to.

I have to set the time zone on this clock. Since "Arizona" isn't a choice,
I have to set it to MST in the winter and PST in the summer. When the
daylight-savings time begins or ends, the clock gets off by an hour.

-- 
  _______                   Shawn T. Rutledge / KB7PWD  ecloud_at_bigfoot.com
 (_  | |_)                       http://ecloud.org  kb7pwd_at_kb7pwd.ampr.org
 __) | | \________________________________________________________________
Received on Thu Jul 26 2001 - 14:27:00 BST

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