[time-nuts] US New Year countdown - accurate?

Javier Herrero jherrero at hvsistemas.es
Mon Jan 2 23:53:41 UTC 2012


El 03/01/2012 00:48, Javier Herrero escribió:
>
>
> Around 7 yr ago, I gave a friend a GPS driven nixie clock, and he had 
> fun taken a picture in which you can see that the second changes 
> simultaneously in the TVE teletext clock and the nixie clock (both in 
> screen and at the clock the second digits were superimposed), so it 
> seems that the discrepancy is inside an aperture time (probably 1/125 
> - he was not using any special technique). He lives 2-3km from 
> Torrespaña, so the delay due to propagation is in the microsecond range. 
A clarification: the discrepancy WAS inside the aperture time: it was 
analog TV then. Now, teletext time seems to have its own soul... 
differences are even larger than 2 seconds...

Regards,

Javier



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