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Regional Disaster Prevention Radio Speakers
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base station
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base station
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base station for mobile phones
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Towering radio tower 1
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power pole with base radio station
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Base station by ZoonarH Landshoeft
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Bodmin Cornwall England 1927View of the aerials at the Bodmin Transmitting Station built by Marconis Wireless Telegraph Company The five on th
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New York New York c 1924An invention demonstrated by Professor Goldsmith of City College of New York that allows the listener to listen in on any
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Replica of Marconis first transmitter used in his early experiments in Italy 1894 Guglielmo Marconi (1874-1937) an Italian physicist and inventor
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Opening of a wireless telegraph link between Paris and Casablanca showing men whose work made it possible the Frenchman Edouard Branly (1844-1940)
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Marconi Berne Radio Station
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antenna
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Antennas at cellular phone base stations
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Antennas at cellular phone base stations
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Cellular phone base station antenna
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Early wireless communication morse code telegraph Photo by Julien McRoberts
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Early wireless communication morse code telegraph Photo by Julien McRoberts
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Marconis transatlantic transmitter Guglielmo Marconis transatlantic radio transmitter at Poldhu Cornwall England It was from here in 1901 that
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Mobile radio station used by Marconi 1900 Guglielmo Marconi (1874-1937) an Italian physicist and inventor was the first to send radio signals acro
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Photograph of Guglielmo Marconis wireless telegraph station in Cornwall which sent and received signals between England and America The first succe
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Typical wireless telegraph cabin on board a ship in 1912
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disaster prevention radio
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Silhouette of roof at dusk
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Replica of Marconis wireless telegraph 1899
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Guglielmo Marconi (1874-1937) Italian physicist holding his most famous invention the radio Privately tutored in his youth Marconi had developed
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Ships radio At left is part of the tuning apparatus At right is the detector and the radio transmission controls and coils Radio technology was d
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International time signals Transmitted by radio this system of timing signals allowed synchronisation of clocks around the world using a standard re
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Radio receiver components Radio technology was developed in the 1890s with new detectors used as the technology progressed At top is an electrolyti
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Opening of a wireless telegraph link between Paris and Casablanca showing men whose work made it possible the Frenchman Edouard Branly (1844-1940)
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Illustration celebrating the opening of the wireless telegraph between Paris and Casablanca showing the men whose work made it possible douard Bran
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Illustration depicting Guglielmo Marconis wireless telegraph station in Dresden which received signals from Oberschneweide and transmitted them to
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Illustration depicting Marconis wireless telegraph being used to report international yacht races Dated 19th century
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Telegraph transmitter and receiver This apparatus was designed by the French inventor Auguste Jean-Baptiste Tauleigne (1870-1926) At right is the re
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Time standardisation apparatus 1913
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Time standardisation apparatus 1913
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Time standardisation apparatus This apparatus which operated in the Paris Observatory from 31 July 1913 was invented by the French engineer Edouard
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Telegraph cable laying winch This shipboard winch was used to unroll a telegraph cable as it was laid on the seabed Laying such cables required ship
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Morse telegraph recording receiver
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Morse telegraph key first used in about 1844 This photograph is from the Western Union Telegraph Company and the Smithsonian Institution It forms p
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Illustration depicting a wireless telegraph operator on a ship Typical wireless room scene of the time and not unlike the set up on the Titanic D
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Photograph of what is thought to be the first wireless set invented by David Edward Hughes David Edward Hughes (1831-1900) a British-American invento
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Senator Marconi in the Wireless Room of his Yacht Guglielmo Marconi 1st Marquis of Marconi (1874-1937) Italian inventor and electrical engineer k
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One of the Wireless Cabins in a modern liner showing on the left the 2-kilowatts medium and long-wave telegraph transmitter 1936 From Shipping Wo
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Marconis radio patent 1897 Italian engineer physicist and inventor Guglielmo Marconi (1874-1937) had developed his first radio equipment by the ag
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Aerial view of landscape
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Aerial view of landscape
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Typical wireless telegraph cabin on board a ship in 1912
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Opening of a wireless telegraph link between Paris and Casablanca showing men whose work made it possible the Frenchman Edouard Branly (1844-1940)
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