Felsenegg-Girstel transmission tower
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Felsenegg directional tower
Directional radio center Albis
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| Basic data | |||||||
| Place: | Felsenegg , Albis | ||||||
| Canton: | Zurich | ||||||
| Country: | Switzerland | ||||||
| Altitude : | 806 m | ||||||
| Coordinates: 47 ° 18 '44 " N , 8 ° 30' 21.3" E ; CH1903: 680 699 / 240699 | |||||||
| Use: | Telecommunication tower , radio transmitter , radar tower | ||||||
| Accessibility: | Transmission tower not open to the public | ||||||
| Owner : | Swisscom Broadcast AG | ||||||
| Tower data | |||||||
| Construction time : | 1959-1963 | ||||||
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| Operating time: | since 1963 | ||||||
| Data on the transmission system | |||||||
| Waveband : | FM transmitter | ||||||
| Radio : | VHF broadcasting | ||||||
| Send types: | PAL , directional radio | ||||||
| Position map | |||||||
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The Felsenegg-Girstel transmission tower , also known as Felsenegg Tower , is a 51 meter high directional tower on the Albis chain at the Felsenegg mountain station in the canton of Zurich.
history
With the completion of the directional tower in 1963, radio and television broadcasting began in Switzerland. The Felsenegg station was the most important national technical center for television broadcasting. It was the control center for many private Swiss television stations and allowed national and international distribution. With the introduction of the REAL system, several transmission systems were distributed to 27 other Swisscom towers. As a result, the tower lost its originally outstanding central importance. The Felsenegg transmission tower is now integrated in the general network of transmission towers. Since fiber optics became popular , conventional broadcasting of radio programs has also declined. The tower broadcasted VHF radio from Radio Zürisee until December 10, 2009 , before it was switched to the Üetliberg . The Skyguide air traffic control company has had a radar station on the tower since 2005 . In 2021 the dilapidated Felsenegg tower will be replaced by a lattice mast. The old concrete tower is to be dismantled by the end of 2022.
description
The directional beam tower was built by the Zurich architect Edwin Schoch. It is 51 meters high and was made of reinforced concrete and clad with aluminum. This cladding not only has significant technical advantages, but also features a special play of light that adapts the tower's color to the changing moods of the day and the weather.
By choosing a continuously slim tower shape, it was possible to avoid a forest fall on the narrow ridge of the Felsenegg. A triangular floor plan with cut corners makes the tower light and at the same time allows the large antennas mounted on special platforms outside the tower to be placed in the desired main beam directions without difficulty.
At its top is a 22-meter dipole antenna made of steel . The tower has 16 floors and one underground floor in which the operating rooms are located. The antennas are mounted on the top five platforms and the roof; this includes parabolic and directional antennas . The radiated power to the Nods Chasseral transmitter 111.3 kilometers away as the crow flies is a maximum of 10 watts .
Web links
Individual evidence
- ↑ Zürichseezeitung, February 8, 1967