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Weiskirchen transmitter, is a mediumwave broadcasting tower in Weiskirchen, Germany. It is the property of Hessischer Rundfunk. It was built in 1967
The Weiskirchen transmitter broadcast on a frequency a 594 kHz. Until the conversion of medium-wave transmission frequencies to by nine divisible kilohertz values, its transmission frequency was 593 kHz. Until 1994 the transmitting power was 400 kW. In 1994, it was reduced to 300 kW.
Weiskirchen transmitter has a directional antenna, which consists of two 126.5-metre-tall guyed lattice steel mast radiators (coordinates: 50°3′19.7″N8°51′44.9″E / 50.055472°N 8.862472°E and 50°3′22.8″N8°51′57.1″E / 50.056333°N 8.865861°E ) insulated against ground.
As opposed to other guyed masts used for medium wave transmission, its guys are not partitioned with insulators. Instead they are grounded over coils situated directly close to the anchor block, which are so tuned, that high frequency currents in the guys are as low as possible.
The Weiskirchen transmitter forms together with Hoher Meissner transmitter a single frequency network. The directive pattern of the transmitter has a maximum toward northwest and two minima pointing toward northeast and southeast. By regulation of the feeding power for each mast, the directivity pattern can be changed, in cooperation with Hoher Meissner transmitter the maximum even to the east.
A signal is transmitted by cable from the studio in Frankfurt to Weiskirchen transmitter. The transmitter uses two water-cooled final stages, which are switched in parallel, in order to avoid a complete transmitter failure in case of a failure of a single tube. The power supply takes place under normal conditions from the local electricity 20kV grid.
As backup, there is a Diesel generator, which starts in a period of 10 to 20 seconds. The current for starting the generator is supplied by a small accumulator unit, which is connected automatically at power failure. If the Diesel generator is used as power source, transmission power is reduced to 100 kW.
Weiskirchen and Hoher Meissner supplied without frequency shift mobile receivers as car radios with the first program of the Hessian Broadcasting Company. Until 1989 this program was predominantly radiated due to the large range of mediumwaves in the night hours by change of the directivity patterns of both transmitters towards east.
Today the broadcast program is mainly the news program HR info. Between 19-22 o'clock programmes for foreign workers are transmitted. It is also used for the transmission of debates of the Bundestag and the Hessian federal state parliament or for other special life reports as live reports from soccer matches. It was planned to convert the Weiskirchen transmitter to digital broadcasting by using DRM transmissions.
The Roumoules transmitter is the main broadcasting facility for longwave and mediumwave broadcasting of Radio Monte Carlo near Roumoules, France and is owned by Monaco Media Diffusion. The 1000 and 2000kW transmitters installed are among the most powerful in the world and can be received well at nighttime throughout Europe.
The Mühlacker Broadcasting Transmission Facility is a radio transmission facility near Mühlacker, Germany, first put into service on November 21, 1930. It uses two guyed steel tube masts as aerials and one guyed steel framework mast, which are insulated against ground. It has two transmission aerials for shortwave and one free standing steel framework tower for directional radio services. The shortwave transmitter was shut off on October 19, 2004. The medium wave transmitter was switched off in January 2012.
The Langenberg transmission tower is a broadcasting station that transmits MW, FM and TV signals. It is located in Langenberg, Velbert, Germany and has had a very turbulent history since its inauguration. The transmitter first went into service in 1927 with 60 kilowatts (kW) of power and a T-aerial hanging on two 100-metre freestanding steel-frame towers insulated against ground.
The Westerglen transmitting station is a facility for longwave and mediumwave broadcasting established in 1932 at Westerglen Farm, 2 miles (3 km) south west of Falkirk, Stirlingshire, Scotland.
The Transmitter Ismaning was a large radio transmitting station near Ismaning, Bavaria, Germany. It was inaugurated in 1932. From 1932 to 1934 this transmitter used a T-antenna as transmitting antenna, which was spun between two 115-metre-high free-standing wooden lattice towers, which were 240 metres apart. As this antenna had an unfavourable vertical radiation pattern, which produced much skywave resulting in a too small fading-free reception area at night, in 1934 a new antenna was installed. Therefore, one of the towers was dismantled and rebuilt on a 39-metre-high (128 ft) wooden lattice base. While this work took place, an L-Antenna was used, which was spun between the other tower and a small auxiliary wooden tower. It became defunct in 1977 and was destroyed in 1983.
The Skelton Transmitting Station is a radio transmitter site at grid reference NY433376 near Skelton, Cumbria, England, about 5 miles (8 km) north west of Penrith, run by Babcock International and owned by the Ministry of Defence. Since the Belmont Mast in Lincolnshire was shortened in 2010, the mast at Skelton has been the tallest structure in the United Kingdom.
The Rheinsender is a large medium-wave transmission facility near Wolfsheim, southwest of Mainz for the frequency 1017 kHz. The Rhine transmitter was established in 1950 and went on the air May 15, 1950. It belongs to SWR and transmitted until the middle of the 1990s with 600 kilowatts. In the last years the transmission power was reduced to 100 kilowatts.
The Cremlingen transmitter is a large mediumwave transmission facility established in 1962 for transmitting the programme of Deutschlandfunk on 756 kHz near Cremlingen-Abbenrode. It was also known as Sender Braunschweig or Sender Königslutter.
The Mainflingen mediumwave transmitter is a mediumwave transmission facility south of the A3 motorway near Mainflingen, Hesse, Germany. Mainflingen was the first mediumwave transmitter for the radio station Deutschlandfunk. It went into service in 1962 with a transmission power of 50 kW, on a frequency of 1538 kHz, at the upper end of the mediumwave band. This frequency has a bad groundwave propagation and therefore a low range at daytime, but an excellent skywave propagation with a long range at night.
The Mediumwave transmitter Lopik was a medium wave broadcasting facility near Lopik in the Netherlands. It was constructed in 1938 and closed down on 1 September 2015. Its last use was to transmit the Dutch language edition of Radio Maria on 675 kHz. The aerial consisted of a 196-metre guyed steel framework mast, which was insulated against ground.
The mediumwave transmitter Flevoland was a broadcasting facility for medium wave near Zeewolde in the province of Flevoland, Netherlands, situated at 5°25′ E and 52°23′ N. It has been used for broadcasting on 747 kHz and 1008 kHz with a nominal power of 400 kilowatts. As aerial two guyed steel framework masts with a height of 195 metres are used, which form an anti-fading aerial. These masts are grounded and carry a cage aerial, which is upperward the separation insulator, separating the masts in a height of 95 metres in two parts, connected toward the mast construction. The radiation diagram is directional, with a maximum gain of 4 dB in South-Eastern direction, to compensate for the variation in electrical admittance of terrain in the Netherlands.
Transmitter Koszęcin is a facility for mediumwave and FM broadcasting near Koszecin, Poland. It was opened in 1977. It has two guyed masts: the first one is 110 metres high, is grounded, and carries antennas for FM broadcasting ; the second is 138m high. That second mast is insulated from ground and used for mediumwave transmission; broadcasting of the Radio Pahonia in Belarusian is planned on 1080 kHz with ERP 350 kW using this mast. The signal will cover the whole of Europe including the Ural Mountains. Earlier, the AM Mast was used for Polish Radio and used two Tesla transmitters 750 kW each in parallel. With the transmitted power of 1500 kW it was one of the most powerful mediumwave transmitters in the world.
The Hirschlanden transmitter was a facility of the Deutsche Telekom AG for mediumwave broadcasting south of Ditzingen-Hirschlanden situated at 48°49'47" N and 9°02'15" E.
The Topolná transmitter is the central longwave broadcasting facility of the Czech Republic situated west of the village of Topolná on the Morava River.
The Wiederau transmitter is the oldest broadcasting facility in Saxony. It is located near Wiederau, a village which is part of the municipality of Pegau, and is used for medium-wave, FM and Television broadcasting.
Marnach transmitter was a broadcasting facility of RTL near Marnach in the commune of Munshausen, in northern Luxembourg. The Marnach transmitter was built in 1955 for improving the transmission of the English-speaking program on 1439 kHz, which was transmitted from 1951 with an omnidirectional antenna from Junglinster, to the British Isles and for a better transmission on this frequency to Germany at daytime. Therefore, it was given a directional antenna with a switchable directional characteristic pointing North-northeast towards the Rhine-Ruhr area, Germany's most populated area, and West-northwest in the direction of the UK. This antenna was implemented in form of a directional antenna consisting of three ground-fed 105-metre tall guyed mast antennas arranged in the form of an isosceles triangle with a 90 degree angle. As transmitters, two 100 kW units switched in parallel were used when it went in service in December 1955.
Dillberg transmitter is a transmitting facility of the Bavarian Broadcasting Company on the 595-metre-high Dillberg mountain west of Neumarkt in der Oberpfalz, Bavaria, Germany. Dillberg transmitter went into service in 1955 for serving the area of Nuremberg with TV and FM radio programmes from a 198-metre-tall guyed mast.
Ravensburg-Horgenzell transmitter was a mediumwave broadcasting facility of Deutsche Telekom used for transmitting the program of Deutschlandfunk on the area of community Horgenzell northwest of Ravensburg in Baden-Württemberg. It was inaugurated on August 23, 1951 and used until 1959 for transmitting the radio programme of SWF with a transmission power of 40 kW on 1538 kHz. As antenna, it used a 120 metre tall guyed ground-fed lattice steel mast radiator at 47°47'10" N and 9°31'16" E.
Ehndorf transmitter was a mediumwave radio transmission mast located at Ehndorf, a village west of Neumünster in Schleswig-Holstein, Federal Republic of Germany. Owned by Deutsche Telekom, until 1978 the facility broadcast Deutschlandfunk on 1269 kHz (1268 kHz). It went into service in November 1967 at a power of 600 kW, reduced to 300 kW in 1995. On 31 December 2015 all mediumwave transmissions of the Deutschlandfunk ceased at 2350 CET.
Hoher Meissner transmitter is a facility for FM and TV broadcasting on Hoher Meissner mountain in Northern Hesse. The transmitter was inaugurated in 1952.
