Yosami Radio Transmitting Station

The Yosami Radio Transmitting Station in Kariya (then called Yosami Village, Hekikai-gun), Aichi, Japan was accredited the IEEE Milestone, in 2009, as the Japan’s first wireless telecommunication station with Europe built in 1929.

History of the Yosami Radio Transmitting Station

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Chronology

year Wireless communication technology Yosami Radio Transmitting Station General
1864 Maxwell predicts electromagnetic waves    
1888 Hertz produces radio waves    
1895 Marconi, in Italy, and Popov, Russia, succeed wireless telegraphy respectedly    
1897 Japanese Ministry of Post and Communication succeed wireless telegraphy    
1901 transmits first trans-Atlantic radio message from Cape Cod   Japanese-Russo War, 1904-05
1905 Japanese Imperial Navy transmits radio message at the Sea of Japan battle of the Japan-Russia War    
1912 Japan patents the TYK Wireless Telephones    
1921 Japanese Ministry of Post and Communication built the Iwaki Wireless Telegraph Station to the U.S., with the Hara-no-machi Radio Transmitting Station, in Fukushima Prefecture Yosami-mura, current Kariya, Hekikai-gun, Aichi, is chosen by the Ministry of Post and Communication, as the site for a radio transmitting station to Europe  
1925 broadcasting begins in Japan October 1 Japan Wireless Telegraph Company is established, and decides constructions of a receiving station in Kaizo Village, the suburbs of Yokkaichi, Mie Prefecture, and a transmitting station in Yosami Village, the suburbs of Kariya, Aichi Prefecture  
1927   February Yosami Radio Transmitting Station is started to construct, and in May 2.4km rail is laid from Ogakie station on Mikawa Railway Company Charles Lindbergh accomplish a nonstop solo flight across the Atlantic
1928 Kenjiro Takayanagi succeeds in electrical TV March 31 Yokkaichi Radio Receiving Station is completed

May Nagoya Wireless Telegraph Station is set at Nagoya Postal OfficeJune

Yosami eight 250m high antenna towers are built
 
1929   April 15 Yosami Radio Transmitting Station is completed and begins telecommunication, by 17,442Hz and the wavelength of 17,200 meters with the antenna power 500kW

April 18 Opening ceremony is held

Transmit to Poland, Germany, France, and the U.K.
 
1936   November Shortwave Station is built, 1 km south of Yosami Radio Transmitting Station  
1937 BBC begins TV broadcasting, NHK begins radio broadcasting    
1938   March International Telecommunication Company is established by merging Japan Wireless Telegraph Company and International Telephone Company

November Yokkaichi Radio Receiving Station is closed
 
1939     World War II break out
1941   Taken over by the Imperial Japanese Navy, for communication to its submarines, and on December 2 reportedly relays the war attack message code of “Climb Mount Niitake 1208” The Pacific War break out
1945   August Suspends telecommunication by the end of World War II World War II ends
1946   Antennas are removed  
1947   February International Electric Telecommunication Company is liquidated, and the antenna system with the exception of the antenna towers was removed  
1950   April Yosami Radios Transmitting Station is requisitioned by GHQ to be used by U.S. Navy, and on June 1 Denki Kogyo Company is established  
1951 CBC and New Japan Broadcasting open commercial radio stations    
1952   July Employed by U.S. Navy, Yokosuka Base, and in September Opening ceremony of Naval Communication Station Japan NRTF Yosami is held  
1954   Shortwave facilities are demolished  
1958 Tokyo Tower is built    
1964   August 20 Open house is held Tokyo Olympics is held
1984   Signals to U.S. nuclear submarines are reported in newspapers, and in May 27 a demonstration of “Human chain” by 11,500 demonstrators is conducted  
1989 NHK begins satellite broadcasting April 15 The 60th anniversary of Yosami Radio Transmitting Station is held, and Memorial monument of the Birthplace of Wireless Telecommunication to Europe is erected by the Tokai Chapter of the Institute of Electronics, Information and Communication Engineers  
1993   August 1 Ceases telecommunication by U.S. Navy  
1994   August 1 Yosami Radio Transmitting Station is returned from U.S. Navy to Japan  
1995   Open house is held, in November, the antennas are begun to remove, and the Tokai Chapter of the Institute of Electronics, Information and Communication Engineers proposes the preservation of the Station  
1996   Recognized as recommended industrial heritage by the Japan Industrial Archaeology Society

July The eight antenna towers are started to dismantled
 
1997   March The eight antenna towers are demolished and the 25-meter high memorial steel tower is to be built  
1999   The 25-meter high Yosami memorial steel tower is built

The Temple Bell of Peace was casted from Yosami earth wires melted

June 30 "Report on the Yosami Radio Transmitting Station" is published
 
2005   Yosami Radio Transmitting Station Memorial Museum & Floral Garden Yosami were started constriaction

July Yosami Radio Transmitting Station is appealed as a UNESCO industrial heritage at the International Conference on Industrial Heritage held in Nagoya
 
2006   April Yosami Radio Transmitting Station buildings are demolished and a dismantlement investigation of the High Frequency Generator is conducted  
2007   2007 April Yosami Radio Transmitting Station Memorial Museum & Floral Garden Yosami open
Eiichi Ohno and Eiju Matumoto visited Yosami the Museum for the IEEE Milestone application
August High Frequency Generator is designated as a Mechanical Engineering Heritage by the Japan Society of Mechanical Engineers
 
2008   Chosen by National Museum of Nature and Science as Future Engineering
Dr. Michael N. Geselowitz, Staff Director of the IEEE History Center visited to designate Yosami, for an IEEE Milestone approval
 
2009   February Ten facilities are designated by the Ministry of Economy, Trade and Industry as Heritage of Industrial Modernization
May IEEE Milestone Dedication Ceremony is held
 
2010   April IEEE Milestone Memorial monument is erected next to Memorial monument of the Birthplace of Wireless Telecommunication to Europe

August Presented at ICOHTECH/TICCIH Joint Congress in Tampere, Finland
 

Compiled by Shoji Ishida and Tetsu Suzuki, 2011