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The Gerbrandy Tower is a tower in IJsselstein, the Netherlands. It is also known as Lopik tower after the nearby town. It was built in 1961.
Sender Zehlendorf or Zehlendorf (radio) transmission facility was a radio transmission facility which was in service since 1936, when a short wave transmitter was built on the occasion of the Berlin 1936 Summer Olympics in Zehlendorf as part of the establishment of permanent radio services. This Zehlendorf site, which until the end of World War II was referred to as the Rehmate Radio Transmission Centre, had 26 different antennas at the time.
The Mühlacker Broadcasting Transmission Facility is a radio transmission facility near Mühlacker, Germany, first put into service on November 21, 1930. It uses two guyed steel tube masts as aerials and one guyed steel framework mast, which are insulated against ground. It has two transmission aerials for shortwave and one free standing steel framework tower for directional radio services. The shortwave transmitter was shut off on October 19, 2004. The medium wave transmitter was switched off in January 2012.
The Langenberg transmission tower is a broadcasting station for ananlog FM Radio and Digital-TV signals. It is located in Langenberg, Velbert, Germany and owned and operated by Westdeutscher Rundfunk, WDR.
The Transmitter Ismaning was a large radio transmitting station near Ismaning, Bavaria, Germany. It was inaugurated in 1932. From 1932 to 1934 this transmitter used a T-antenna as transmitting antenna, which was spun between two 115-metre-high free-standing wooden lattice towers, which were 240 metres apart. As this antenna had an unfavourable vertical radiation pattern, which produced much skywave resulting in a too small fading-free reception area at night, in 1934 a new antenna was installed. Therefore, one of the towers was dismantled and rebuilt on a 39-metre-high (128 ft) wooden lattice base. While this work took place, an L-Antenna was used, which was spun between the other tower and a small auxiliary wooden tower. It became defunct in 1977 and was destroyed in 1983.
Grimeton Radio Station in southern Sweden, close to Varberg in Halland, is an early longwave transatlantic wireless telegraphy station built in 1922–1924, that has been preserved as a historical site. From the 1920s through the 1940s it was used to transmit telegram traffic by Morse code to North America and other countries, and during World War II was Sweden's only telecommunication link with the rest of the world. It is the only remaining example of an early pre-electronic radio transmitter technology called an Alexanderson alternator. It was added to the UNESCO World Heritage List in 2004, with the statement: "Grimeton Radio Station, Varberg is an outstanding monument representing the process of development of communication technology in the period following the First World War." The radio station is also an anchor site for the European Route of Industrial Heritage. The transmitter is still in operational condition, and each year on a day called Alexanderson Day is started up and transmits brief Morse code test transmissions, which can be received all over Europe.
The Monte Ceneri transmitter was first established as the nationwide medium-wave radio transmission station for Italian-speaking Switzerland in 1933. Located on Monte Ceneri in Ticino, it broadcast on a frequency of 558 kHz.
A lattice tower or truss tower is a freestanding vertical framework tower. This construction is widely used in transmission towers carrying high voltage electric power lines, in radio masts and towers and in observation towers. Its advantage is good shear strength at a much lower weight than a tower of solid construction would have as well as lower wind resistance. In structural engineering the term lattice tower is used for a freestanding structure, while a lattice mast is a guyed mast supported by guy lines. Lattices of triangular (3-sided) cross-section are most common, particularly in North America. Square (4-sided) lattices are also widely used and are most common in Eurasia. Lattice towers are often designed as either a space frame or a hyperboloid structure.
The Blaw-Knox company was an American manufacturer of steel structures and construction equipment based in Pittsburgh, Pennsylvania. The company is today best known for its radio towers, most of which were constructed during the 1930s in the United States. Although Blaw-Knox built many kinds of towers, the term Blaw-Knox tower usually refers to the company's unusual "diamond cantilever" design, which is stabilized by guy wires attached only at the vertical center of the mast, where its cross-section is widest. During the 1930s AM radio broadcasting stations adopted single mast radiator antennas, and the Blaw-Knox design was the first type used. A 1942 advertisement claims that 70% of all radio towers in the United States at the time were built by Blaw-Knox.
The Żórawina radio transmitter is a facility for FM transmission at Żórawina, south of Wrocław. It was established in 1932 as "Reichssender Breslau" and used as an antenna tower. Originally it was a 140-metre-tall free-standing lattice tower built of wood, on which a wire antenna was hung up. On the top of the tower there was an octagonal ring of bronze with a diameter of 10.6 metres for electrical lengthening of the antenna.
Radio masts and towers are typically tall structures designed to support antennas for telecommunications and broadcasting, including television. There are two main types: guyed and self-supporting structures. They are among the tallest human-made structures. Masts are often named after the broadcasting organizations that originally built them or currently use them.
The Transmitter Berlin-Tegel was a broadcasting facility for medium wave in Berlin-Tegel, Germany. It was built in 1933 and used as an aerial wire hung up in a 165-metre-high (541 ft) tower of wood framework. In 1940, the height of the tower was reduced to 86 metres. On December 16, 1948 the tower was bombed under orders of the French Commander at the time, because of concerns of endangering the air traffic of the nearby Berlin Tegel Airport, which was under construction at the time.
A broadcast transmitter is an electronic device which radiates radio waves modulated with information content intended to be received by the general public. Examples are a radio broadcasting transmitter which transmits audio (sound) to broadcast radio receivers (radios) owned by the public, or a television transmitter, which transmits moving images (video) to television receivers (televisions). The term often includes the antenna which radiates the radio waves, and the building and facilities associated with the transmitter. A broadcasting station consists of a broadcast transmitter along with the production studio which originates the broadcasts. Broadcast transmitters must be licensed by governments, and are restricted to specific frequencies and power levels. Each transmitter is assigned a unique identifier consisting of a string of letters and numbers called a callsign, which must be used in all broadcasts.
The Transmitter Nuremberg-Kleinreuth was a broadcasting facility for medium wave at Nuremberg, Bavaria, Germany. It was founded in 1927 in Nuremberg-Kleinreuth at the former Broadcast Street 24, now Sigmund Street 181, in order to supply the northern areas of Bavaria with broadcast programs in the medium-wave band.
The Wenvoe transmitting station, officially known as Arqiva Wenvoe, is the main facility for broadcasting and telecommunications for South Wales and the West Country. It is situated close to the village of Wenvoe in the Vale of Glamorgan, Wales, in the UK.
The Heilsberg transmitter was a large radio transmitting station operated by the Reichs-Rundfunk-Gesellschaft between 1930 and 1945 in the German Province of East Prussia. It was sited approximately 3 kilometres (1.9 mi) northwest of Lidzbark Warmiński, on the road to Bagrationovsk.
The Cape Race LORAN-C transmitter was a LORAN-C transmitter at Cape Race, Newfoundland and Labrador, Canada.
The Wiederau transmitter is the oldest broadcasting facility in Saxony. It is located near Wiederau, a village which is part of the municipality of Pegau, and is used for medium-wave, FM and Television broadcasting.
Dillberg transmitter is a transmitting facility of the Bavarian Broadcasting Company on the 595-metre-high Dillberg mountain west of Neumarkt in der Oberpfalz, Bavaria, Germany. Dillberg transmitter went into service in 1955 for serving the area of Nuremberg with TV and FM radio programmes from a 198-metre-tall guyed mast.
Grodno TV Tower, also known as the Hrodna TV Tower, is a 254 metre tall lattice tower at Grodno, Belarus, built in 1984 of a unique design. The upper section of the tower is guyed using four horizontal crossbars fixed on the main body of the tower extending out from it about two-thirds of the way up the tower. Only three other towers are known to have been built of a similar design all within a three year period. They are the Wavre Transmitter, the Astara TV Tower and the Vitebsk TV Tower, the Grodno TV Tower is the tallest of the four. The Wavre Transmitter is the only one of which was built outside of the Soviet Union.
References
- ↑ "Drawings of Sendemast Stadelheim 1". SkyscraperPage.com. 2007-03-20. Retrieved 2022-05-02.
- ↑ "Drawings of Sendemast Stadelheim 2". SkyscraperPage.com. 2007-03-20. Retrieved 2022-05-02.
- ↑ "Drawings of Sendemast Stadelheim 2 (2nd)". SkyscraperPage.com. 2007-03-20. Retrieved 2022-05-02.
- ↑ "Drawings of Sendemast Stadelheim 1 (2nd)". SkyscraperPage.com. 2007-03-20. Retrieved 2022-05-02.
