Longwave transmitter Orlunda
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The Longwave transmitter Orlunda was a broadcast transmission facility for longwave at Orlunda, Sweden near Motala, which was established in 1962. It used as aerial an arrangement of 6 guyed steel framework masts, which were insulated against ground. 5 masts were 200 metres tall and arranged on a circle around a 250 metre tall central mast. The masts on the circle were fed with opposite phase than the central mast, which gave a very flat radiation pattern (fading reducing aerial). In 1970 the central mast collapsed after a lightning strike destroyed its basement insulator. In 1991 the transmitter was shut down and in 1995 the last radio masts of the facility were demounted.
On the site of the former central mast, there is today an 86.4 metre tall guyed mast used for mobile phone services.
[edit] External links
- Orlunda Long-Wave Transmitter Towers at structurae.net
- Orlunda Central Long-Wave Radio Mast at structurae.net
- http://www.skyscraperpage.com/diagrams/?b46230
- http://www.skyscraperpage.com/diagrams/?b46231
- http://www.skyscraperpage.com/diagrams/?b46232
- http://www.skyscraperpage.com/diagrams/?b46233
- http://www.skyscraperpage.com/diagrams/?b46234
- http://www.skyscraperpage.com/diagrams/?b46236
[edit] See also
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