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Transmitter WachenbrunnThe transmitter Wachenbrunn is a large broadcasting facility for medium wave in Germany, established in the fifties. Until 1993 the main transmitter of this facility, the medium wave transmitter for 882 kHz was run with 250 kilowatts. In this year the transmission power of this transmitter, which was former used for transmitting the "Voice of DDR" and since the beginning of the ninties for "MDR info" was reduced to 20 kilowatts. As aerial two guyed steel tube masts insulated against ground with heights of 142.8 metres are used. One of these masts was until 1988 a reflector mast at the transmitter Berlin-Koepenick, before it was demounted and rebuilt at Wachenbrunn. This type of transmission aerial allowed a better radiation toward Southwest. Furthermore there was until mid of ninties a triangle area aerial and a small guyed mast, which was insulated to ground. Both installations exist not any more. Since 1988 the transmitter Wachenbrunn is also a site of a medium wave transmitter of the Russian foreign radio service Voice of Russia (former: Radio Moskau) on 1323 kHz. This transmitter is like the transmitter of "MDR info" run by German Telecom Inc.. In the noon and evening hours there are German speaking transmissions of the Voice of Russia. This transmitter is in respect of its transmission power with 1000 kilowatts the third strongest in Germany and it uses as aerial a directional aerial consisting of four 125.1 metre high guyed steeltube framework masts, which are insulated against ground, with triangular cross section. These masts, which are called by the people "Russian Quartett", are from the other parts of the facility 800 metres away, in order to avoid undesireble interferences. For the transmission of the radio frequency power until the modernisation of the facility in 2002/2003 a reusen line from the transmitter, which was located close to the transmitter of "MDR info" and the "Russian Quartett" was used. In doing the modernization in an old store building close to the "Russian Quartett" a completely transistorized transmitter with a power of 1000 kilowatts was installed. Therefore the reusen line was for its greatest parts obsolote and therefore shortened. By shortening the transmission line the effiency of the new transmitter, which is 85 percent, is still mad bigger. During the modernisation the masts of the "Russian Quartett", which had until that point of time a grey colour, got a red-white painiting. Weblinks - http://www.structurae.net/structures/data/index.cfm?ID=s0011496
- http://www.structurae.net/structures/data/index.cfm?ID=s0011495
- http://www.structurae.net/structures/data/index.cfm?ID=s0011497
List of masts
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