Editing Kalundborg Transmitter (section)

{{redirect|243 AM|{{chem|243|Am}}|Americium-243}}
{{Use dmy dates|date=December 2023}}
{{Infobox building
|name = Kalundborg Transmitter
|image = Kalundborg renewed longwave towers.jpg
|building_type = Mast
|location = [[Kalundborg]], [[Zealand]]
|status = Built
|completion_date = 1927
|destroyed = 
|height = {{convert|147|m|ft|2|abbr=on}}
|coordinates = {{coord|55|40|39|N|11|04|09|E|region:DK_type:landmark|display=inline,title}}
|architect =
|pushpin_map = Denmark
}}
Kalundborg Radio was a major transmission facility for [[longwave|long]]- and [[mediumwave]] at the harbour of [[Kalundborg]] in [[Denmark]]. Longwave broadcasts on 243&nbsp;[[kHz]] began on 27 August 1927 and ceased on 31 December 2023.
Mediumwave broadcasts on 1062&nbsp;kHz began on 1 October 1951 and ceased in June 2011.