What type of transmission does Tower to the People and Wardenclyffe Tower have in common?
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Tower to the People Tower to the People - Tesla's Dream at Wardenclyffe Continues is a 2015 documentary film directed by Joseph Sikorski about Nikola Tesla's Wardenclyffe Tower. The film documents the history and subsequent decline of the Wardenclyffe complex designed and built by Tesla in Shoreham, New York, as the main laboratory and facility for his experiments on wireless power transmission. The documentary focuses on the role of J.P. Morgan, one of the main investors behind the project, who pulled his support after realizing free wireless energy would hurt his own business interests. Tesla could not find additional investments and in 1906 the project was abandoned and never became operational. After over a century of decay, the tower site was rescued by a successful fundraising campaign and will be converted into a museum – the Tesla Science Center at Wardenclyffe – honoring the legacy of the Serbian American inventor.
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Wardenclyffe Tower Wardenclyffe Tower (1901–1917), also known as the Tesla Tower, was an early wireless transmission station designed and built by Nikola Tesla in Shoreham, New York in 1901-1902. Tesla intended to transmit messages, telephony and even facsimile images across the Atlantic to England and to ships at sea based on his theories of using the Earth to conduct the signals. His decision to scale up the facility and add his ideas of wireless power transmission to better compete with Guglielmo Marconi's radio based telegraph system was met with the project's primary backer, financier J. P. Morgan, refusing to fund the changes. Additional investment could not be found and the project was abandoned in 1906 and never became operational.
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Radio frequency power transmission Radio frequency power transmission is the transmission of the output power of a transmitter to an antenna. When the antenna is not situated close to the transmitter, special transmission lines are required.
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Radio City Tower Radio City Tower (also known as St. John's Beacon) is a radio and observation tower in Liverpool, England, built in 1969 and opened by Queen Elizabeth II. It was designed by James A. Roberts Associates in Birmingham. It is 138 metres (452 ft) tall, and is the second tallest free-standing building in Liverpool and the 32nd tallest in the United Kingdom.
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Traffic message channel Traffic Message Channel (TMC) is a technology for delivering traffic and travel information to motor vehicle drivers. It is digitally coded using the ALERT C protocol into RDS Type 8A groups carried via conventional FM radio broadcasts. It can also be transmitted on Digital Audio Broadcasting or satellite radio. TMC allows silent delivery of dynamic information suitable for reproduction or display in the user's language without interrupting audio broadcast services. Both public and commercial services are operational in many countries. When data is integrated directly into a navigation system, traffic information can be used in the system's route calculation.
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Mumbai Television Tower The Mumbai Television Tower is the television tower owned by Doordarshan, the public-broadcaster located in the city of Mumbai in India. It stands at 300 m and is the fourth-tallest man-made structure in the Indian subcontinent. The red and white tower is an open latticework structure. The tower, located at Worli, can be seen from most parts of South Mumbai.
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Penderyn transmitting station The Penderyn television relay station is sited on high ground to the east of the village of Penderyn in the Brecon Beacons. It was originally built in 1984 as a fill-in relay for UHF analogue television covering the communities of Penderyn and Hirwaun. It consists of a 12 m self-supporting lattice steel mast standing on a hillside which is itself about 310 m above sea level. The transmissions are beamed west and south to cover all these targets. The Penderyn transmission station is owned and operated by Arqiva.
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Kokavil transmission tower Kokavil transmission tower, often nicknamed Kokavil Tower, is a 174 m tall multi-functional transmission tower at Kokavil, Mullaitivu, Sri Lanka, which is used for television, radio and telecommunication transmissions as well as military communications. It's mast structure is made of lattice steel. It is the tallest structure in Sri Lanka after Hyatt Regency Colombo.
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Junglinster Longwave Transmitter The Junglinster Longwave Transmitter is a longwave broadcasting facility used by RTL near Junglinster, Luxembourg, which went into service in 1932. Its aerial consists of three free-standing steel-framework towers, which are ground fed radiators. These towers formed a directional aerial for the frequency 234 kHz and until 1980 were 250 metres high. Since 1980 their height has been 215 metres.
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Tunnel transmitter A tunnel transmitter allows wireless reception in tunnels. It consists of a receiving antenna which receives the signal to be radiated in the tunnel, and a transmitting antenna installed in the tunnel, which is either a Yagi antenna or a line antenna. In principle, a tunnel transmitter can work purely passively, in which case the received signal is passed over a cable to the antenna in the tunnel. Active systems, however, are more often used. In some cases the radio frequency inside the tunnel is different from the one used by the broadcaster. More often the program inside is transmitted on the same frequency as outside, in which case the information signal should be demodulated or converted to an intermediate frequency in the outside receiver, and then modulated/shifted back in the transmitter. Otherwise feedback may occur.
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Transposition tower In electrical power transmission, a transposition tower is a transmission tower that changes the relative physical positions of the conductors of a transmission line. A transposition tower allows these sections to be connected together, while maintaining adequate clearance for the conductors. This is important since it distributes electrical impedances between phases of a circuit over time, reducing the problem of one conductor carrying more current than others.
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Tower 42 Tower 42 is the third tallest skyscraper in the City of London and the eighth tallest in Greater London. Its original name was the NatWest Tower (or National Westminster Tower), having been built to house NatWest's international headquarters. It is still commonly referred to as the NatWest Tower. Seen from above, the shape of the tower resembles that of the NatWest logo (three chevrons in a hexagonal arrangement).
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Ochsenkopf Transmitter The Ochsenkopf Transmitter (German: "Sender Ochsenkopf" }) is a 163-metre radio and TV tower of reinforced concrete, which was built in 1958 on the summit of the 1024-metre Ochsenkopf mountain, the second-highest mountain in the Fichtelgebirge mountain chain in Northern Bavaria, Germany. The tower replaced a 50-metre guyed steel tube TV mast that collapsed in January 1958 as result of icing. The tower, which is not accessible to the public, has a hyperbolic-shaped basement with five floors for technical equipment. Above it, there are platforms for directional antennas. The antennas for FM-transmission are on the upper part of the concrete tower, those for TV transmission on a steel tube mast on the top.
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Stokenchurch BT Tower Stokenchurch BT Tower is a telecommunications tower built of reinforced concrete at Stokenchurch, Buckinghamshire, England. Reaching to 340.5 m above mean sea level, it dates from 1963 and is 99.4 m tall. There are four platforms at the top that are used to attach microwave transmission drums and other antennas.
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Transmission (telecommunications) In telecommunications, transmission (abbreviation: Tx) is the process of sending and propagating an analogue or digital information signal over a physical point-to-point or point-to-multipoint transmission medium, either wired, optical fiber or wireless. One example of transmission is the sending of a signal with limited duration, for example a block or packet of data, a phone call, or an email. Transmission technologies and schemes typically refer to physical layer protocol duties such as modulation, demodulation, line coding, equalization, error control, bit synchronization and multiplexing, but the term may also involve higher-layer protocol duties, for example, digitizing an analog message signal, and source coding (compression).
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Sutton Coldfield transmitting station The Sutton Coldfield transmitting station is a broadcasting and telecommunications facility located in Sutton Coldfield near Birmingham, England. In terms of population covered, it is the second most important transmitter in the UK, after Crystal Palace in London.
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Ryan Tower Ryan Tower was a 228.9 m tall guyed mast on the Clifford Slope of Camp Fortune in Chelsea, Quebec, Canada.
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Langenberg transmission tower The Langenberg transmission tower (also translated as "Sender Langenberg" or "Transmission Facility Langenberg") is a broadcasting station that transmits MW, FM and TV signals. It is located in Langenberg, Velbert, Germany and has had a very turbulent history since its inauguration. The transmitter first went into service in 1927 with 60 kilowatts (kW) of power and a T-aerial hanging on two 100-metre freestanding steel-frame towers insulated against ground.
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Santa Cecilia Tower Santa Cecilia Tower (Maltese: "Torri ta' Santa Ċeċilja "or" Torri ta' Santa Ċilja" ) is a tower in Għajnsielem, Gozo, Malta. It was built in 1613 by a member of the Order of St. John, and it could relay messages across the island. Today, the tower is in good condition and it is a private residence.
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Liaoning Broadcast and TV Tower The Liaoning Broadcast and Television Tower (Chinese: 辽宁广播电视塔, Pinyin: liáoníng guǎngbō diànshì tǎ) is a tall free-standing structure used for communication. It was built in 1989 in Shenyang, China and is 305.5 m tall. Within the "disk" of the tower, accessible through an elevator, there is an in-door observation deck, rotating restaurant, and a small bar. On the top of the disk is an outdoor observation deck. This tower is in World Federation of Great Towers.
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Galați TV Tower Galați TV Tower (Romanian: "Turnul de televiziune Galaţi" ) is a 150 m tall concrete tower used for FM and TV broadcasting in Galați, Romania. The tower, completed in 1978, is equipped with a tower restaurant, perhaps the only of this kind in Romania.
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Haverfordwest transmitting station The Woodstock transmitting station is a broadcasting and telecommunications facility located at Woodstock about 13 km to the north east of the town of Haverfordwest, in Pembrokeshire, Wales (grid reference [ SN028261] ). It was originally built by the BBC, entering service in early 1964 acting as a main transmitter for the 405-line VHF television system, and as a repeater for Band 2 VHF FM radio received off-air from Blaenplwyf transmitting station. It is now owned and operated by Arqiva.