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Warsaw_radio_mast abstract "The Warsaw Radio Mast was the world's tallest structure until its collapse on 8 August 1991. It is the second tallest land-based structure ever built, being surpassed as tallest by the Burj Khalifa, completed in 2010.The mast, which was designed by Jan Polak, was 646.38 metres (2,120.7 ft) tall. Its construction, started in July 1970, was completed on 18 May 1974, and its transmitter entered regular service on 22 July of that year. It was located in Konstantynów, Gąbin, Poland, and was used by Warsaw Radio-Television (Centrum Radiowo-Telewizyjne) for longwave radio broadcasting on a frequency of AM-LW (long wave) 227 kHz before 1 February 1988 and AM-LW (long wave) 225 kHz afterwards. Its base was 115.2 metres (378 ft) above sea level. Because a voltage potential of 120 kV existed between the mast and ground, it stood on a 2 metres (6.6 feet)-high insulator. It operated as a mast radiator (half wave radiator), so its height was chosen in order to function as a half-wavelength antenna at its broadcasting frequency. The signals from its 2 megawatt transmitters could be received across all of Europe and North Africa, and could reach as far away as North America, Antarctica, South America, Asia, southern Africa, Australia/New Zealand, and the North and South Poles (essentially the entire globe). Its weight was debated: Polish sources claimed 420 tonnes (930,000 lb).".
Warsaw_radio_mast architect Mostostal.
Warsaw_radio_mast architect Radio_masts_and_towers.
Warsaw_radio_mast buildingEndDate "1974-05-18".
Warsaw_radio_mast destructionDate "1991-08-08".
Warsaw_radio_mast height "646.38".
Warsaw_radio_mast location G%C4%85bin.
Warsaw_radio_mast location Konstantyn%C3%B3w,_P%C5%82ock_County.
Warsaw_radio_mast location Poland.
Warsaw_radio_mast thumbnail Maszt_radiowy_w_Konstantynowie.jpg?width=300.
Warsaw_radio_mast type Radio_masts_and_towers.
Warsaw_radio_mast wikiPageExternalLink file.php?id=130.
Warsaw_radio_mast wikiPageExternalLink default.aspx?crs=EPSG%3A2180&bbox=553252,500995,556017,500048&variant=TOPO.
Warsaw_radio_mast wikiPageExternalLink 20070923KonstantynWMasztRadiowy64638M19741991.
Warsaw_radio_mast wikiPageExternalLink file.php?id=336&mode=view.
Warsaw_radio_mast wikiPageExternalLink file.php?id=352&mode=view.
Warsaw_radio_mast wikiPageExternalLink Warsaw.Radio.Mast.
Warsaw_radio_mast wikiPageExternalLink index.php?option=com_content&view=article&id=109:ukad-konstrukcyjny&Itemid=95.
Warsaw_radio_mast wikiPageExternalLink ?b46244.
Warsaw_radio_mast wikiPageExternalLink ?b54663.
Warsaw_radio_mast wikiPageExternalLink gabin.htm.
Warsaw_radio_mast wikiPageID "368499".
Warsaw_radio_mast wikiPageRevisionID "606083692".
Warsaw_radio_mast architect "Jan Polak at Mostostal M-1 Zabrze".
Warsaw_radio_mast before KVLY-TV_mast.
Warsaw_radio_mast buildingType Radio_masts_and_towers.
Warsaw_radio_mast caption "Mast prior to topping out".
Warsaw_radio_mast civilEngineer "Andrzej Szepczyński at Mostostal M-4 Zabrze".
Warsaw_radio_mast completionDate "1974-05-18".
Warsaw_radio_mast destructionDate "1991-08-08".
Warsaw_radio_mast hasPhotoCollection Warsaw_radio_mast.
Warsaw_radio_mast id "s0000672".
Warsaw_radio_mast location Gąbin.
Warsaw_radio_mast location Konstantynów_(Płock_County).
Warsaw_radio_mast location Poland.
Warsaw_radio_mast mainContractor "Polish Broadcasting Company".
Warsaw_radio_mast name "Warsaw Radio Mast".
Warsaw_radio_mast nativeName "Nadawczy w Konstantynowie".
Warsaw_radio_mast nativeName "Radiofoniczny Ośrodek".
Warsaw_radio_mast otherDesigners "Alimak of Sweden".
Warsaw_radio_mast otherDesigners "Brown & Boveri of Switzerland".
Warsaw_radio_mast otherDesigners "Several Polish companies".
Warsaw_radio_mast rows "2".
Warsaw_radio_mast startDate "July 1970".
Warsaw_radio_mast status "Collapsed".
Warsaw_radio_mast title List_of_tallest_buildings_and_structures_in_the_world.
Warsaw_radio_mast title "Radio Warsaw Transmission Tower".
Warsaw_radio_mast years "1974".
Warsaw_radio_mast years "38782.8".
Warsaw_radio_mast subject Category:1991_disestablishments.
Warsaw_radio_mast subject Category:Buildings_and_structures_in_Masovian_Voivodeship.
Warsaw_radio_mast subject Category:Communications_in_Poland.
Warsaw_radio_mast subject Category:Destroyed_landmarks.
Warsaw_radio_mast subject Category:Former_radio_masts_and_towers.
Warsaw_radio_mast subject Category:Former_world's_tallest_buildings.
Warsaw_radio_mast subject Category:Polskie_Radio.
Warsaw_radio_mast subject Category:Płock_County.
Warsaw_radio_mast subject Category:Radio_masts_and_towers.
Warsaw_radio_mast subject Category:Ruins_in_Poland.
Warsaw_radio_mast subject Category:Towers_completed_in_1974.
Warsaw_radio_mast subject Category:Towers_in_Poland.
Warsaw_radio_mast point "52.37302777777778 19.806944444444444".
Warsaw_radio_mast type Artifact100021939.
Warsaw_radio_mast type Building102913152.
Warsaw_radio_mast type BuildingsAndStructuresCompletedIn1974.
Warsaw_radio_mast type BuildingsAndStructuresInMasovianVoivodeship.
Warsaw_radio_mast type DemolishedBuildingsAndStructures.
Warsaw_radio_mast type FormerWorld'sTallestBuildings.
Warsaw_radio_mast type Object100002684.
Warsaw_radio_mast type PhysicalEntity100001930.
Warsaw_radio_mast type Structure104341686.
Warsaw_radio_mast type Whole100003553.
Warsaw_radio_mast type YagoGeoEntity.
Warsaw_radio_mast type YagoPermanentlyLocatedEntity.
Warsaw_radio_mast type ArchitecturalStructure.
Warsaw_radio_mast type Building.
Warsaw_radio_mast type Place.
Warsaw_radio_mast type Wikidata:Q532.
Warsaw_radio_mast type Place.
Warsaw_radio_mast type Building.
Warsaw_radio_mast type Location_Underspecified.
Warsaw_radio_mast type Location.
Warsaw_radio_mast type SpatialThing.
Warsaw_radio_mast comment "The Warsaw Radio Mast was the world's tallest structure until its collapse on 8 August 1991. It is the second tallest land-based structure ever built, being surpassed as tallest by the Burj Khalifa, completed in 2010.The mast, which was designed by Jan Polak, was 646.38 metres (2,120.7 ft) tall. Its construction, started in July 1970, was completed on 18 May 1974, and its transmitter entered regular service on 22 July of that year.".
Warsaw_radio_mast label "Antenna radio di Varsavia".
Warsaw_radio_mast label "Mast van Radio Warschau".
Warsaw_radio_mast label "Maszt radiowy w Konstantynowie".
Warsaw_radio_mast label "Sendemast Konstantynów".
Warsaw_radio_mast label "Torre de radio de Varsovia".
Warsaw_radio_mast label "Torre de rádio de Varsóvia".
Warsaw_radio_mast label "Tour de transmission de Radio Varsovie".
Warsaw_radio_mast label "Warsaw radio mast".
Warsaw_radio_mast label "Варшавская радиомачта".
Warsaw_radio_mast label "ワルシャワラジオ塔".
Warsaw_radio_mast label "華沙電台廣播塔".
Warsaw_radio_mast sameAs Vysílač_Konstantynow.
Warsaw_radio_mast sameAs Sendemast_Konstantynów.
Warsaw_radio_mast sameAs Torre_de_radio_de_Varsovia.
Warsaw_radio_mast sameAs Tour_de_transmission_de_Radio_Varsovie.
Warsaw_radio_mast sameAs Menara_Radio_Warsawa.