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Gangabweichung von +20sec zur PTB-Uhr | ELV DCF-Uhr mit LED-Anzeigen DCF-7SEG | Forum | ELV Elektronik
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An atomic clock CS2 is pictured in the time-laboratory of the Physical Technical Federal Institution (PTB) in Braunschweig, Germany, 22 October 2012. In the night from 27 to 28 October, the clocks
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