Wilsdruff transmitter
The sender Wilsdruff a radio station for medium wave is referred to, in the small town near Dresden Wilsdruff was in operation from 1954 to 2013.
Description
The antenna is a 153 -meter-high, insulated against ground pipe mast. The mast stands with a ceramic stem on the Abstimmhaus, a concrete rotunda, in which the necessary for adaptation of the power cable to the antenna coils and capacitors ( resonant transformer ), as well as lightning protection devices are housed. The 250 kW transmitter was working with radiation- cooled tubes and is housed in a remote room. It is connected to a specially designed coaxial, air-insulated transmission line ( Reuse line ) with the transmission tower.
In the transmitter main buildings are located in a hall the transmitter tubes, capacitors and air-core coils made of pipe. In the basement, including the power and cooling is housed. The installed in another room for emergency power supply submarine diesel engines from the Second World War served the safe operation, supplied in emergency situations but also partly the city Wilsdruff with electricity.
History
Construction of the 153 meter high mast pipe was. According in September 1953 took place in September 1952 tests, the broadcast center Wilsdruff was officially inaugurated on 8 May 1954.
Until the 1990s 1044 kHz was from this station with an output of 250 kilowatts on the frequency sent. At the time of the GDR, the GDR radio program I was radiated by the transmitter. About the initially planned as a reserve second transmitter was later to 20 kW, the program of the Berlin broadcasting on 1089 kHz, 1431 kHz, sent on from 1978.
From 1968 to 1969, the program operated for propaganda purposes against Czechoslovakia Vltava radio was broadcast on 1430 kHz.
The station stands today as a technical monument on the Saxon cultural heritage list. The overall system is preserved almost original ( two-row cranked barbed wire fence with dogs track and watch towers ) as a relic of the Stalin era with comprehensive security systems.
Since the mid- 1990s, the transmission power is only 20 kilowatts. The modern used for this transmitter is completely semiconductor- equipped and in the rotunda, on the even of the antenna mast is housed. For a time, the program has now been MDR Sputnik (formed from DT64 ) radiated after its FM transmission over the TV tower Dresden had been shut down.
By 2003, a triangular patch antenna for the frequency was in Wilsdruff 1044 kHz until this frequency was eventually moved to the 153 -meter high mast tube.
In Wilsdruff the program the transmitter MDR Info was until 2013 on the frequency 1044 kHz is radiated. Also remotes from the meetings of the Saxon Parliament were received on this frequency, then this the program of MDR Info was interrupted. From 2001 to 2003, a second transmitter for mega radio was operated on 1431 kHz in Wilsdruff yet. He also made use of the 153 meter high mast tube.
After the re-tendering the frequency 1431 kHz was awarded by the Saxon State Media Authority SLM to the Voice of Russia. Send beginning in Wilsdruff was April 1, 2006, there were programs transferred from Moscow in German, English and Russian. In December 2012, the Voice of Russia announced that stop their medium wave broadcasts from Wilsdruff from financial considerations, on January 1, 2013. From this action the medium wave transmitter in Cremlingen - Abbenrode and Wachenbrunn were affected.
On April 30, 2013 at 6 clock in the morning the medium wave transmission of MDR Info from Wilsdruff ended with the connection of a reference loop had pointed to the alternative receive path DAB and ran to 6 May 2013. After their deactivation by 6 clock an empty carrier until at 9 clock ran through the transmitter Wilsdruff on all three broadcast stations ( Wilsdruff, Wiederau and Reichenbach ) Note the loop was switched on again. The transmitter in Wilsdruff was turned off at 11:37 clock as the last of the three stations by a technician of the transmitter operator Media Broadcast on site manually. Thus, it is no longer broadcasting from this location. An outline of the transmission tower to follow.
The local museum of the city Wilsdruff dedicated to the radio tower Wilsdruff a special exhibition room, where, moreover, a very informative, but not intended for sale DVD (50 minutes in length ) can be viewed to the radio tower.
The station was also opened for " Heritage Day ," an annual appointment to view. Regular the terrain is not freely accessible.