RKS Liblice 2

RKS Liblice 2 is a high-power broadcasting facility for medium wave located in the Czech Republic about 33 km east of Prague near Liblice at coord|50|04|02|N|14|53|13|E|. RKS Liblice 2 was founded in 1936, in close proximity of the RKS Liblice 1. It used as antenna a 280.4 metre tall mast radiator insulated against ground. The mast, which was built by Karlova Huť in Lískovec survived World War II without damages. On October 17th, 1972, it was demolished by explosives, as one decided to replace the Blaw-Knox by a new antenna system, consisting of two 355 metre high guyed masts of lattice steel, 120 metres apart from each other, at which cage aerials are mounted. These masts, which are the tallest towers in the world used for mediumwave broadcasting, are in opposite to the former Blaw-Knox mast grounded. They were designed by Jan Šťovíček and built in 1976. While mast construction took place, two new transmitter devices of the type Tesla SRV 750 with an output power of 750 kW were installed. In regular operation these transmitters are switched in parallel for a transmission power of 1500 kW. On November 23rd, 1978, its transmission frequency, which was since 1950 638 kHz was changed to 639 kHz in order to fulfill the regulations of waveplan of Geneva.

On August 27th, 2005 a skydiver jumped illegally from one of the masts. His parachute got hung on a backstage insulator. Fortunately it was dry weather and he did not get too close to the cage antenna of the tower. Otherwise, he might have been killed by high frequency currents.

External links

* [http://www.sweb.cz/stredni.vlny/Cra/Img/Liblice_2_tech.gifTechnical data (Czech)]
* [http://www.sweb.cz/stredni.vlny/Cra/Liblice_2_cz.html Photogallery]
* [http://www.skyscraperpage.com/diagrams/?b45909 Schema of first tower]
* [http://www.skyscraperpage.com/diagrams/?b45910 Schema of second tower]
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* http://www.prostor-ad.cz/pruvodce/pvychod/cbrod/vysilac.htm

See also

* List of masts
* List of tallest structures in Czech