a website collaboration between Science Service and the Smithsonian Institution

WGY on the roof of General Electric's research laboratory


CD 1967064 E&MP109.001

Radio Beamcasting

no date

Receiving the voice from the air on a beam of light -

Engineers of WGY on the roof of General Electric's research laboratory, with special apparatus for receiving a program "narrowcasted" by light beam from the U.S. Navy's dirigible Los Angeles, flying 2,500 feet over Schenectady.

The light was picked up by a large concave mirror mounted on the tripod where small a "electric eye" converted the light waves into electrical impulses, which were converted into sound by the same means as used in an ordinary radio receiver.  

Original Caption by Science Service
General Electric

National Museum of American History


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