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Links

Tidsstandarder:
BBC using the 198kHz carrier of the Radio 4 national radio station with a frequency accuracy of 1 part in 1011
I Europa benyttes DCF77 der sender på 77,5 KHz fra Frankfurt am Main i Tyskland.
The 'MSF signal' and the 'Rugby clock' frequency of 60 kHz to within 2 parts in 1012.
Time from NPL


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