Vienna Arsenal radio tower

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Vienna Arsenal radio tower
Image of the object
Upper part of the radio tower
Basic data
Place: Vienna
State: Vienna
Country: Austria
Altitude : 202  m above sea level A.
Coordinates: 48 ° 10 ′ 55.1 ″  N , 16 ° 23 ′ 27 ″  E
Use: Telecommunications tower , broadcasting station
Accessibility: Transmission tower not open to the public
Owner : A1 Telekom Austria
Tower data
Construction time : 1974-1975
Building materials : Concrete , reinforced concrete
Operating time: since 1975
Total height : 155  m
Operating rooms: 100  m , 106 m, 114 m, 124 m, 131 m
Data on the transmission system
Waveband : FM transmitter
Radio : VHF broadcasting
Send types: DVB-T, directional radio
Position map
Radio tower Vienna-Arsenal (Vienna)
Vienna Arsenal radio tower
Vienna Arsenal radio tower
Localization of Vienna in Austria
South-southeast view of the directional radio tower

The 1975 completed radio tower Vienna arsenal of A1 Telekom Austria (also known as Arsenal tower , telecommunications tower Wien-Arsenal , Richtfunkturm Arsenal , abbreviated Rifu Arsenal , Post Tower or simply Alfred known) is a 155-meter high freestanding tower with a reinforced concrete shaft in the 3rd district of the plans of the architect Max Agnese ( Kurt Eckel office ) and a prominent building visible from afar in the south of Vienna . The base is 201  m above sea level. A. on.

Location

The shell of the telecommunications administration building on the site of the historic Arsenal military complex was completed as early as September 1962 and the Central Telecommunications Office (FZA) and the Telecommunications Central Construction Office (FZB) of the Post and Telegraph Directorate in Vienna moved in a little later.

On October 15, 1973 , the groundbreaking ceremony for the new central telecommunications building took place on a plot of land between the central telecommunications office and the federal theater workshops, which until then had served as a storage area for cable drums. The six components of the new telecommunications center of the Vienna Telecommunications Office, founded in 1958, with the radio tower as an eye-catcher, were officially opened on September 8, 1978. When it opened, it housed the new main arsenal office , a foreign exchange, a local office, video text (BTX) and a post garage and post bus repair shop. In 1979 the first fully electronic, computer-controlled teletype and data exchange (EDS) was put into operation there. On November 3, 1981, Austria's first fiber optic cable (2 × 4 fibers) went into operation from here to the Meidling telephone exchange .

Today the facility is called the A1 Telekom Austria Technologiezentrum Arsenal and is the heart of the A1 Telekom Austria infrastructure. This is where the Network Management Center (NMC) is located to control and manage the entire network, in which the employees work in five shifts. Also located here is A1's largest data center for server provisioning or external servers, the headquarters for AonAlarmServices , telematics and property video surveillance, and the multimedia platform for data processing and storage (video on demand) for the cable television service A1 Kabel TV . In addition, A1 operates numerous technical facilities for its mobile network with its own team, including central parts such as the base station controller and home location register . 50% of your data throughput from the end of 2008 a maximum of 2 gigabits / second is processed here.

On the occasion of its construction, critics criticized its visibility from Schwarzenbergplatz as an impairment of the cityscape. In contrast to the Danube Tower, the radio tower is not open to the public.

Tower building and construction

The excavation of the foundation and the concreting began in February 1974. The round shaft, which is uniform over its entire length, was manufactured using a sliding construction. The four concrete antenna platforms and the steel construction of the operating floor in between were each concreted or installed on the ground and then lifted to the appropriate place with 12 hydraulic jacks at a speed of 9.4 meters per 24 hours.

The shaft has an outer diameter of 8.4 m. The wall thickness decreases in steps on the inside towards the top (0–32 m: 70 cm; 32–69.5 m: 50 cm; 69.5–136.5 m: 35 cm). The reinforced concrete shaft is closed off by a 1.50 to 1.85 m thick concrete slab, which supports the 18.4 m high steel mast. The platforms are at 100, 106, 124 and 131 meters, the operating floor at 114 meters. There are 607 steps to the company floor, and almost 900 to the top platform. The built-in lift takes 70 seconds to reach the company floor. This is where the technical equipment for the antennas and the workplace of the radio relay service are located.

function

The tower is a hub of the Austrian radio relay network . It is the end point of the three main routes (west: Vienna-Linz-Salzburg-Innsbruck-Bregenz, south: Vienna-Graz-Klagenfurt, from 1981 center: Vienna-Hochkar-Roßbrand-Innsbruck-Bregenz). Until 2001, all ORF radio television programs ran analogously from the ORF center in Küniglberg to the individual stations via the Arsenal radio tower. Today almost only digital data connections are processed. At the end of 2008, there were 75 directional radio antennas on the four antenna platforms , each sending and receiving to a remote station within sight. In addition to the three main routes, the main broadcasts go to the Küniglberg and the Kahlenberg transmitter . The main relations are served with several channels at the same time and at the end of 2008 over 120 radio channels were active.

Since 1998, the private radio station Energy 104.2 has been broadcasting 1 kilowatt from a height of 145 meters. Since September 2006, Österreichische Rundfunksender GmbH has been broadcasting its DVB-T signal from MUX A (channel 24, changeover to channel 65) in the single- frequency network (SFN) with the transmitters Kahlenberg , Himmelhof and others. MUX B (Kanal 34) has been active since October 2007 and only broadcasts with Kahlenberg and Himmelhof in the single-frequency network.

See also

literature

Web links

Commons : Funkturm Wien-Arsenal  - Collection of images, videos and audio files