Blosenbergturm: Difference between revisions
The Beromuenster transmitter has been shut down |
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[[Image:Beromuenster_Transmitter_Room.JPG|thumb|Inside Beromünster transmitter building]] |
[[Image:Beromuenster_Transmitter_Room.JPG|thumb|Inside Beromünster transmitter building]] |
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The '''Blosenbergturm ''' is a transmitting tower in [[Beromünster]], [[Canton of Lucerne]], [[Switzerland]], built in 1937 for the [[German language]] [[radio]] station DRS and sending at an [[AM radio|AM]] [[frequency]] of 531 kHz marking the down end of the official mediumwave broadcasting range. The Blosenbergturm has a height of 217 m and is a self-radiating tower insulated against ground, i.e. the entire tower structure is used as an [[Antenna (electronics)|antenna]]. It has a cabin at a height of 150 m, containing a coil for feeding the pinnacle, which is insulated against the rest of the tower, separately with high frequency power. By this cabin it has similar proportions as [[Fernsehturm Stuttgart]]. Originally the tower was used as dipole antenna, whereby the feeding point was in the cabin. There is a second 126 metre tall freestanding lattice tower nearby, which is as Blosenbergturm a [[mast radiator|tower radiator]] insulated against ground. This tower, which was built in 1931, carried until 1962 together with a second tower, which was dismantled and rebuilt in [[Swisscom-Sendeturm St. Chrischona|St. Chrischona]] near Basel as TV transmission tower, a T-antenna for medium wave. After dismantling the second tower it was transformed in a tower radiator, which serves now as backup transmission for the Blosenbergturm. |
The '''Blosenbergturm ''' is a transmitting tower in [[Beromünster]], [[Canton of Lucerne]], [[Switzerland]], built in 1937 for the [[German language]] [[radio]] station DRS and sending at an [[AM radio|AM]] [[frequency]] of 531 kHz marking the down end of the official [[medium wave|mediumwave]] broadcasting range. The Blosenbergturm has a height of 217 m and is a self-radiating tower insulated against ground, i.e. the entire tower structure is used as an [[Antenna (electronics)|antenna]]. It has a cabin at a height of 150 m, containing a coil for feeding the pinnacle, which is insulated against the rest of the tower, separately with high frequency power. By this cabin it has similar proportions as [[Fernsehturm Stuttgart]]. Originally the tower was used as dipole antenna, whereby the feeding point was in the cabin. There is a second 126 metre tall freestanding lattice tower nearby, which is as Blosenbergturm a [[mast radiator|tower radiator]] insulated against ground. This tower, which was built in 1931, carried until 1962 together with a second tower, which was dismantled and rebuilt in [[Swisscom-Sendeturm St. Chrischona|St. Chrischona]] near Basel as TV transmission tower, a T-antenna for medium wave. After dismantling the second tower it was transformed in a tower radiator, which serves now as backup transmission for the Blosenbergturm. |
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The air traffic obstacle lights of Blosenbergturm have a special feature: at dawn a rotating beamer above the cabin is in service. This beamer, which is much less bright, than |
The air traffic obstacle lights of Blosenbergturm have a special feature: at dawn a rotating beamer above the cabin is in service. This beamer, which is much less bright, than |
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Revision as of 23:32, 10 January 2009
The Blosenbergturm is a transmitting tower in Beromünster, Canton of Lucerne, Switzerland, built in 1937 for the German language radio station DRS and sending at an AM frequency of 531 kHz marking the down end of the official mediumwave broadcasting range. The Blosenbergturm has a height of 217 m and is a self-radiating tower insulated against ground, i.e. the entire tower structure is used as an antenna. It has a cabin at a height of 150 m, containing a coil for feeding the pinnacle, which is insulated against the rest of the tower, separately with high frequency power. By this cabin it has similar proportions as Fernsehturm Stuttgart. Originally the tower was used as dipole antenna, whereby the feeding point was in the cabin. There is a second 126 metre tall freestanding lattice tower nearby, which is as Blosenbergturm a tower radiator insulated against ground. This tower, which was built in 1931, carried until 1962 together with a second tower, which was dismantled and rebuilt in St. Chrischona near Basel as TV transmission tower, a T-antenna for medium wave. After dismantling the second tower it was transformed in a tower radiator, which serves now as backup transmission for the Blosenbergturm.
The air traffic obstacle lights of Blosenbergturm have a special feature: at dawn a rotating beamer above the cabin is in service. This beamer, which is much less bright, than the beamers on Stuttgart TV Tower is switched off at night and the red air-traffic obstacles warning lights are turned on. By watching the blinking lamp on the pinnacle of the tower one can see, if transmitter is working. It glows faint in the blink breaks while transmitter works as result of the high electric field at the top, when transmitter is working.
The Beromuenster transmitter has been shut down on December 28th, 2008, at midnight (CET), even though there where some protests against this measure.
External links
- Blosenbergturm at Structurae
- Blosenbergturm on SkyscraperPage.com.
- Beromünster Reserve Transmission Tower at Structurae
- technical data about the transmitter
See also
 | This article about a Swiss building or structure is a stub. You can help Wikipedia by expanding it. |
 | This article about a mast or transmitter tower in Europe is a stub. You can help Wikipedia by expanding it. |