World Heritage Grimeton Radio Station

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:UNESCO_World_Heritage_Site gptkb:radio_station
gptkbp:antennaType	multiple tall steel towers
gptkbp:architect	Henrik Kreüger
gptkbp:built	1922-1924
gptkbp:coordinates	57°06′07″N 12°27′02″E
gptkbp:country	gptkb:Sweden
gptkbp:hasTower	6
gptkbp:height	127 meters
gptkbp:heritageDesignation	Swedish national monument
gptkbp:historicalSignificance	only remaining example of pre-electronic radio transmitter technology
https://www.w3.org/2000/01/rdf-schema#label	World Heritage Grimeton Radio Station
gptkbp:location	gptkb:Grimeton,_Varberg_Municipality,_Halland_County,_Sweden
gptkbp:notableEvent	annual Alexanderson Day transmission
gptkbp:officialName	Grimeton Radio Station, Varberg
gptkbp:openToPublic	museum and guided tours available
gptkbp:operator	Swedish Post and Telecom Authority (historically)
gptkbp:owner	Grimeton World Heritage Foundation
gptkbp:preserved_equipment	Alexanderson alternator transmitter
gptkbp:purpose	transatlantic wireless communication
gptkbp:significance	early longwave transatlantic wireless telegraphy
gptkbp:status	operational (as of 2024, for special occasions)
gptkbp:technology	gptkb:Alexanderson_alternator
gptkbp:transmitter_frequency	17.2 kHz
gptkbp:transmitter_type	longwave
gptkbp:UNESCO_criteria	ii, iv
gptkbp:UNESCO_region	Europe and North America
gptkbp:UNESCOWorldHeritageSite	2004 1134
gptkbp:website	https://www.grimeton.org/
gptkbp:bfsParent	gptkb:SAQ_Grimeton
gptkbp:bfsLayer	7