Re: O.T. Timers Message #3 Posted by Walter B on 14 Sept 2009, 1:09 p.m., in response to message #2 by Marcus von Cube, Germany
Like in other countries, the time signal here comes from an atomic clock. Ours is Cs AFAIK and is located at PTB (Physikalisch-Technische Bundesanstalt = German Weights and Measures at Braunschweig, an institute like NIST in the USA). The signal is DCF77, long wave, broadcasted from Mainflingen (some 50 km east of Frankfurt). You can receive it within 1500 km radius, provided you are not behind concrete walls or similar obstacles for electromagnetic radiation.
Way back, I took part in production of radio controlled clocks, so this is what I recall.
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