Rocky Point is a hamlet and census-designated place (CDP) in Suffolk County, New York, on the North Shore, of Long Island. As of the 2010 United States Census, the CDP population was 14,014. Rocky Point is a community in the Town of Brookhaven.
Rocky Point is home to the site where American radio company RCA once operated a very large transmitting and transmitter research facility, known as Radio Central. RCA began to transmit transatlantic radio messages from Radio Central after its opening on November 5, 1921. Early Radio Central transmissions were received by many European nations, including Britain, Spain, France, Germany, Italy, Austria, and Poland.
On January 7, 1927, AT&T initiated the first transatlantic commercial telephone service, linking London and New York. AT&T's transmitter was at Radio Central, and their receiver was in Houlton, Maine. The radiotelephone signal from Radio Central was received by the British General Post Office’s receiver facility in Cupar, Scotland.
Radio Central was one of the many original operating and touring sites of Guglielmo Marconi's radio shack, which now is displayed at Rocky Point's Frank J. Carasiti Elementary School.