Reber, Gröte

Reber, Gröte,

1911–2002, American radio engineer, b. Chicago, Ill. After graduating from the Armour Institute of Technology (now the Illinois Institute of Technology) in 1933, Reber worked for several radio manufacturers and radio stations. Intrigued by Karl Jansky'sJansky, Karl Guthe,
1905–50, American radio engineer; b. Norman, Okla. After graduating (1927) from the Univ. of Wisconson, he joined the Bell Telephone Laboratories.
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 discovery of cosmic radio waves emanating from the galactic center, Reber built (1937) a 31.4–ft (9.6–m) dish antenna in his backyard—the first radio telescope dedicated to astronomy. After two years of developing and testing receivers he published a series of articles about his findings, marking the beginning of radio astronomyradio astronomy,
study of celestial bodies by means of the electromagnetic radio frequency waves they emit and absorb naturally. Radio Telescopes

Radio waves emanating from celestial bodies are received by specially constructed antennas, called radio telescopes,
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 as a science. Reber was the first to systematically study the sky by observing something other than visible light, the first to express received radio signals in terms of flux density and brightness, the first to find evidence that cosmic radiation is nonthermal, and the first to produce contour radio maps of the sky. In 1951 he settled in Tasmania where he conducted very-long-wavelength radio astronomy through holes in the ionosphere unique to that region.

Reber, Grote

(1911–  ) radio astronomer; born in Wheaton, Ill. An amateur ham radio operator, he was so intrigued by reports of Karl Jansky's "cosmic static" that he built a parabolic dish, the first radio telescope, in his yard in Wheaton (1937). As the world's first radio astronomer, he published a radio map of the sky in 1944. He moved to Tasmania (1954) where he presided over a field of dipoles (antennas) 3,500 feet in diameter while continuing his private research.