Wachenbrunn transmitter
The transmitter Wachenbrunn was a radio station in the medium-wave band in Themarer district Wachenbrunn in Thuringia.
History
Transmitter for 1323 kHz
From 1988 to 2012 Wachenbrunn site was a medium wave transmitter of the Russian foreign service Voice of Russia (formerly Radio Moscow ) on the frequency 1323 kHz. He was, as the transmitter operated for the spread of MDR info from Media Broadcast GmbH. In the lunch and dinner hours, the German -language program of the Voice of Russia was transferred. This transmitter was regarding its transmission power of the third strongest in Germany and used a directional antenna, which consisted of four 125.1 meter high lattice masts insulated against ground pipe with a triangular cross-section ( Koordinaten50.48555555555610.558333333333 ). The two active masts were fed, the remaining poles served as a reflector. The station was built in 1985-1988 by Russian engineers, the components came also from the former Soviet Union. In December 1988, the station went into operation.
The tubular lattice masts, the term Russian quartet contributed to the local population, had been erected about 800 meters away from the other parts of the plant to prevent interactions of the antennas. The particular for radiating RF power was transferred to the modernization of the system 2002/2003 a Reuse line from the transmitter installed in the annexe to the main building to the Russian quartet.
In the train of modernization, a fully transistorized 1,000 -kilowatt transmitter of Telefunken was installed with an efficiency of 84 % in an old warehouse building on the site of the Russian Quartet. Thereby, the Reuse line became redundant and accordingly reduced to a great extent, so that line losses remained low. During the modernization of the plant, the masts of the Russian quartet that had silver gray by then, a red and white paint were given.
In December 2012, the Voice of Russia announced that it has ceased its medium wave broadcasts from Wachenbrunn for financial reasons, as of January 1, 2013. This regulation also the medium wave transmitter in Cremlingen - Abbenrode and Wilsdruff were affected. The transmission system in Wachenbrunn was shut down on 31 December 2012 as planned by 23 clock.
On September 19, 2013 at 14:55 clock the remaining four masts were turned over. Thus, there is on that site no longer transmitter.
Transmitter for 882 kHz
Already on 7 October 1950, the national transmitter Weimar took a small transmitter into operation in order to improve reception in southern Thuringia. This was listed as Hildburghausen or Schleusingen. The name Wachenbrunn first appeared in 1955, but the name was Suhl until the 1970s generally used. To transmit power, the GDR did not specify, West German sources they gave with 5 kW, at times even with 20 kW. From the mid- 1950s was on the frequency 1052 kHz the program of Radio DDR, later broadcast Radio 1 GDR until 1963 also the regional program of the studio Suhl. From the mid- 1970s used Radio DDR 1, the frequency 629 kHz, while the program of the Berliner Rundfunk broadcast on 1052 kHz.
On October 7, 1959 went to Wachenbrunn the last of the 250 kW transmitter from the Funkwerk Köpenick on the frequency 692 kHz operation. This served mainly to supply southern Germany with the Germany of the transmitter program (later part of the GDR ).
The 1978 came into force in Geneva wave plan was for the 250 kW transmitter before the frequency 882 kHz with directional lighting (40 °), but this was initially used by the transmitter King Wusterhausen. Instead, used Wachenbrunn 1044 kHz in single-frequency operation with the transmitters castle and Wilsdruff. It was not until the mid 1980s, they switched to 882 kHz, instead of Radio DDR 1 was re- broadcast voice of the GDR. The 20- kW transmitter on 1431 kHz beamed from the program of the Berliner Rundfunk.
After the political change has been broadcast on the smaller stations from 1990 to 1991 radio date, then the frequency 1431 kHz was abandoned. The main frequency 882 kHz was taken over by the Thuringian radio and from 1992 by the Central German Broadcasting.
By 1993, this station, which went into operation in the 1950s was operated with a transmitter power of 250 kilowatts. As a transmitting antenna served two insulated from earth tubular masts with 142.8 meters high. One of these tubular masts was until 1988 as a reflector pole on the 2002 demolished broadcasting office in Berlin -Köpenick in use before it was dismantled and re-erected in Wachenbrunn. The transmitting antenna enabled a directional radiation in a southwesterly direction. Until the mid- nineties still existed a triangular patch antenna and a smaller insulated against ground transmitter mast. Both facilities are no longer available.
Until 30 June 2011, it radiated from the transmitter on the frequency 882 kHz, the MDR program info with a power of 20 kW from. By 4 July 2011, at 10:00 clock informed a bridged announcement that the transmitter was turned off. The transmitter system for the frequency 882 kHz was blown up on 14 July 2011.