[time-nuts] How accurate are cheap radio controlled clocks?

Had had at to-way.com
Sat Jun 25 20:52:21 UTC 2011

Hey Ed,

How are things in the land of mold, mildew and Jamesions?

Best 73,


>Typically better than 1s. If there is interference or the radio is disabled,
>it won't be able to receive the time signal. Switch mode PSUs and CRT TVs
>or computer monitors can interfere with the 60kHz time signal.
>The clocks with an LCD display usually have an indicator which shows
>signal strength if the clock successfully updated in the last hour.
>If you have reception problems, try moving the clock. The built-in
>ferrite rod is very directional.
>Were you receiving Radio 4 on LW or via a digital service. You could
>easily see a 3s delay on digital radio or TV.
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Peter Cooper, of Fermi Lab, says, "Every experimentalist knows
that the apparatus, or at least your understanding of it, is
always at fault until demonstrated otherwise." He also says,
"Nature is really unmoved by what I, or anyone else, believes."

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