Rheinturm Düsseldorf is the name of the television tower Düsseldorf in Germany. Built between 1978 and 1981, it acts as a transmitter for the super-high frequency (SHF) and very high frequency (VHF) waves, as well as for digital terrestrial television (DVB-T standard). It also houses an observation platform 170 meters away, and a panoramic restaurant on its axis in one hour, 174.5 meters. Commissioned by the Deutsche Bundespost, the construction of the tower began on 20 January 1979 and ended three years later. The inauguration took place on December 1, 1981.
Its architect, Harald Deilmann, used the so-called climbing formwork method mainly used in the construction of cooling towers, in which the formwork is progressively hoisted on new concrete portions. The height of 218 meters was reached in stages of 2.5 meters. The Rheinturm was the first tower made entirely of reinforced concrete.
The installation of a new antenna for broadcasting digital terrestrial television on October 16, 2004, raised the height of the tower from 234.2 to 240.5 meters. One of the peculiarities of the tower is that, thanks to lights encrusted in the mast, it can serve as a clock and give time. At nightfall, this sculpture created by Horst H. Baumann (called the Lichtzeitpegel) and composed of 39 lights spread over the entire length of the mast, lights up. The lights come on in series and thus give the digits of tens and units respectively for hours and minutes. The last lamps in the bottom count the seconds. The time is synchronized to the DCF77 signal. © Photo of Emmanuel Buchot
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