[time-nuts] A man with two clocks...

Didier Juges shalimr9 at gmail.com
Fri Oct 4 07:57:44 EDT 2013


Max,

This is a very interesting project and well documented, thank you!

Didier KO4BB

David J Taylor <david-taylor at blueyonder.co.uk> wrote:
>Among my time nut toys is a Consumer grade GPS clock and a similar WWVB
>clock.  The WWVB clock consistently runs about 0.2 seconds ahead of the
>GPS
>one.  I know no one can say why without knowing the particulars of the
>two
>clock's circuits.  Just thought I'd post it for what it's worth.
>
>Regards.
>
>Max.  K 4 O DS.
>===================================
>
>Max,
>
>I see similar things here.  I've always put it down to relatively poor 
>circuitry in the radio clock, which is why I built my NTP-controlled
>wall 
>clock!
>
>  http://www.satsignal.eu/raspberry-pi/DigitalClock.html
>
>One radio clock is below.  That particular MSF clock is actually not
>too 
>bad - visibly it's in sync with the NTP clock (which itself is within a
>few 
>microseconds of GPS time).
>
>73,
>David GM8ARV
>-- 
>SatSignal Software - Quality software written to your requirements
>Web: http://www.satsignal.eu
>Email: david-taylor at blueyonder.co.uk 
>
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