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⚫ The '''Fernmeldeturm Berlin''' (Telecommunication Tower Berlin) is a ] ] on the Schaefer mountain in ]-]. The Fernmeldeturm Berlin was built between ] and ] and is normally not open for visitors.


⚫ The '''Fernmeldeturm Berlin''' (Telecommunications Tower Berlin) is a ] ] located atop the Schäferberg hill in ]-]. The tower was built between 1961 and 1964, and is not open to the public. Owner and operator of the site is ] (DFMG), a subsidiary of ].
The Fernmeldeturm Berlin is 212 metres high, from which the shaft has a height of 187 metres. In a height of 101.6 metres and 132.44 metres the tower has floors for technical equipment. In these floors are mainly devices for directional radio services. From 1964 to the early nineties, the tower was used for the realisation of an overhorizon-directional radio link toward the old federal republic of ] (Counterparts at Torfaus and Clenze). Therefore the tower was equipped with two parabolic dishes with a diameter of 30 metres, which were mounted on the shaft of the tower. These aerials were removed in ].


The Fernmeldeturm Berlin is {{convert|212|m|ft|0}} tall, and its ] shaft extends to a height of {{convert|187|m|ft|0}}. Between {{convert|101|and|132|m|ft|0}} in elevation, the tower houses six floors for technical equipment. This currently consists of transmitters for ] digital television, analog ] radio, and newer ] and ] digital radio.
Because of these aerials, the Fernmeldeturm Berlin had to be designed to stand a much higher wind pressure than the TV towers at Dortmund and Stuttgart, which are of similar height. The Fernmeldeturm Berlin was also used for broadcasting FM radio and TV programs.


From 1964 to the early nineties, the tower was used to implement two over-the-horizon radio links to the rest of ]. The city of Berlin was geographically isolated, so unusual means were necessary to bridge the distance. One such link used bundled arrays of ]s mounted near the top to establish a near-line-of sight connection at 250 MHz and 400 MHz to the tower at ]. The other used ] at 2 GHz to establish a non-line-of-sight link to ].<ref>Der deutsche Fernsehturm, Rudolf Pospischil, 2009, pages 40-47</ref> To that end the tower was equipped with two ] antennas, each {{convert|18|m|ft|0}} in diameter, which were mounted on the lower portion of the tower. They were removed in 1996. Because of these aerials, the Fernmeldeturm Berlin had to be designed to withstand triple the ] of the comparably sized ]. The concrete shaft is thus {{convert|12|m|ft|0}} in diameter at the bottom, with a wall thickness of {{convert|55|cm|in|0}}. At the {{convert|97|m|ft|0|adj=on}} mark, the shaft is nigh {{convert|7|m|ft|0}} in diameter.
Close to the Fernmeldeturm Berlin there is a free standing steel framework tower, which also carried parabolic aerials for the overhorizon-link to former ].


Directly adjacent to the Fernmeldeturm Berlin is a free standing steel framework tower. Formerly it supported two {{convert|10|m|ft|0|adj=on}} diameter ] aerials for an over-the-horizon radio link, also to Torfhaus. These have since been removed. It is now predominantly used for ] aerials.
⚫ Since ] the Fernmeldeturm Berlin is also used for transmissions in the medium wave range on 1485 kHz in DRM mode. Because there are no transmission aerials for this frequency range on the site of the Fernmeldeturm Berlin, a long wire aerial was installed for this purpose.

⚫ Since 2001, the Fernmeldeturm Berlin is also used for transmissions in the ] range on 1485 kHz in ] mode. Since the tower was not designed to accommodate this frequency range, a long wire ] was installed for this purpose.

== Gallery ==
<gallery>
Image:Fernmeldeturm_Berlin-Schaeferberg.jpg|The Fernmeldeturm viewed from the Belvedere Palace in Potsdam
Image:Berlin Fernmeldeturm Schaeferberg.jpg|The Fernmeldeturm viewed from Große Steinlanke
Image:Pohlesee_und_Fernmeldeturm_(2009).jpg|Tower viewed across Pohlesee
Image:DBPB 1965 264 Fernmeldeturm Schäferberg.jpg|Commemorative Berlin postage stamp from 1965
Image:Fernmeldeturm Berlin line drawing.PNG|Line drawing of the Fernmeldeturm showing its 1975 state
Image:Fernmeldeturm Array.jpg|The Fernmeldeturm sporting its former array of directional antennas pointing to Gartow
</gallery>


==See also== ==See also==
* ] * ]

==References==
{{reflist}}

⚫ ==External links==
⚫ * {{Structurae|id=20012105|title=Fernmeldeturm Berlin-Schäferberg}}
⚫ *
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{{coord|52|25|02|N|13|07|39|E|region:DE-BE_type:landmark|display=title}}


{{Skyscrapers in Berlin}}
⚫ ==External link==
{{Authority control}}
*
{{Portal bar|Germany|Architecture}}
⚫ *


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Latest revision as of 22:35, 18 November 2024

The Fernmeldeturm Berlin

The Fernmeldeturm Berlin (Telecommunications Tower Berlin) is a telecommunication tower located atop the Schäferberg hill in Berlin-Wannsee. The tower was built between 1961 and 1964, and is not open to the public. Owner and operator of the site is Deutsche Funkturm (DFMG), a subsidiary of Deutsche Telekom.

The Fernmeldeturm Berlin is 212 metres (696 ft) tall, and its steel-reinforced concrete shaft extends to a height of 187 metres (614 ft). Between 101 and 132 metres (331 and 433 ft) in elevation, the tower houses six floors for technical equipment. This currently consists of transmitters for DVB-T digital television, analog ] radio, and newer DAB and DMB digital radio.

From 1964 to the early nineties, the tower was used to implement two over-the-horizon radio links to the rest of West Germany. The city of Berlin was geographically isolated, so unusual means were necessary to bridge the distance. One such link used bundled arrays of directional antennas mounted near the top to establish a near-line-of sight connection at 250 MHz and 400 MHz to the tower at Gartow. The other used tropospheric scatter at 2 GHz to establish a non-line-of-sight link to Torfhaus. To that end the tower was equipped with two Parabolic reflector antennas, each 18 metres (59 ft) in diameter, which were mounted on the lower portion of the tower. They were removed in 1996. Because of these aerials, the Fernmeldeturm Berlin had to be designed to withstand triple the wind loading of the comparably sized TV tower in Stuttgart. The concrete shaft is thus 12 metres (39 ft) in diameter at the bottom, with a wall thickness of 55 centimetres (22 in). At the 97-metre (318 ft) mark, the shaft is nigh 7 metres (23 ft) in diameter.

Directly adjacent to the Fernmeldeturm Berlin is a free standing steel framework tower. Formerly it supported two 10-metre (33 ft) diameter parabolic aerials for an over-the-horizon radio link, also to Torfhaus. These have since been removed. It is now predominantly used for cellular network aerials.

Since 2001, the Fernmeldeturm Berlin is also used for transmissions in the medium wave range on 1485 kHz in DRM mode. Since the tower was not designed to accommodate this frequency range, a long wire aerial was installed for this purpose.

Gallery

  • The Fernmeldeturm viewed from the Belvedere Palace in Potsdam The Fernmeldeturm viewed from the Belvedere Palace in Potsdam
  • The Fernmeldeturm viewed from Große Steinlanke The Fernmeldeturm viewed from Große Steinlanke
  • Tower viewed across Pohlesee Tower viewed across Pohlesee
  • Commemorative Berlin postage stamp from 1965 Commemorative Berlin postage stamp from 1965
  • Line drawing of the Fernmeldeturm showing its 1975 state Line drawing of the Fernmeldeturm showing its 1975 state
  • The Fernmeldeturm sporting its former array of directional antennas pointing to Gartow The Fernmeldeturm sporting its former array of directional antennas pointing to Gartow

See also

References

  1. Der deutsche Fernsehturm, Rudolf Pospischil, 2009, pages 40-47

External links

52°25′02″N 13°07′39″E / 52.41722°N 13.12750°E / 52.41722; 13.12750

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