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The Dish (landmark) : ウィキペディア英語版 | The Dish (landmark)
The Dish is a radio telescope in the Stanford foothills. The dish was built in 1966 by the Stanford Research Institute (now SRI International). The cost to construct the telescope was $4.5 million, and was funded by the United States Air Force, with the original purpose of studying the chemical composition of the atmosphere. Later on, the Dish was used to communicate with satellites and spacecraft. With its unique bistatic range radio communications, where the transmitter and receiver are separate units, the powerful radar antenna was well-suited for communicating with spacecraft in regions where conventional radio signals may be disrupted. At one point, the Dish transmitted signals to each of the Voyager craft that NASA dispatched into the outer reaches of the solar system.〔(【引用サイトリンク】 title= Voyager: The Grand Tour of Big Science )〕 It has also been used to remotely recalibrate ailing satellites orbiting the Earth. ==Today==
The dish is still actively used today for academic and research purposes.〔(【引用サイトリンク】 title=Welcome to the Stanford Dish )〕 It is owned by the U.S. Government and operated by SRI International. It is used for commanding and calibrating spacecraft, and for radio astronomy measurements. 〔(【引用サイトリンク】 title=The "Dish" Radio Antenna Facility )〕
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