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1919 __ 9XM — Weather reports
Earle Melvin Terry (1879-1929)
Comment : January 3. 9XM in Madison, Wisconsin, begins radio-telephone broadcasts of weather reports. (Barry Mishkind, “The Broadcast Archives”, [http://www.oldradio.com/ www.oldradio.com])While most early radio stations in the United States were shut down when the country entered World War I, 9XM's early transmissions were considered important enough to continue, spending much of the war broadcasting weather information to ships sailing on the Great Lakes. Voice broadcasts took some time to work out, as there were some significant fidelity problems. Terry hosted a party at his home in 1917 to listen to the first scheduled audio broadcast, although few of the guests understood the implications of being able to listen to a piece of music that could just as easily be placed in a nearby record player. The fidelity issues were worked out by February 1919 when a transmission was made for the U.S. Navy. Regularly-scheduled audio broadcasts began a year later in February 1920. A six day per week schedule began on January 3, 1921. The station received its WHA call sign on January 13, 1922. (Compiled from various sources)The 9XM transmitter used its new wavelength, 1,700 meters (176 kHz), for weather transmission. The telegraphic weather message included the forecast received from the Chicago weather bureau office and the temperature changes predicted for the newt thrity-six hours. "State officials of Wisconsin have sent out a proposal that every farmer in Wisconsin shall install wireless telegraph apparatus to receive weather reports from the University of Wisconsin. The service will be free" (New York Times). Andrew W. Hopkins recognized in 1921 the possibilities for using radio to broadcast agricultural information, because many farmers were already tuning to the telephonic weather broadcasts. Hopkins and other members of the College of Agriculture prepared material specifically to be read on air (by Malcolm Hanson). These talks on agriculture were the first hint of the station's service to the Wisconsin farm community in the years to come.In 1916 : Telegraphic reception of basketball results from Iowa City Station 9YA (November); Telegraphic reception of "war news from Berlin" from station POZ (March 3); First regular telegraphic broadcast of weather forecast (December 4); In 1917 : First telegraphic broadcast of college basketball game (February 17); First clear transmission of phonograph music (April 7); In April 1921 the 9XM staff presented a public demonstration of wireless telephony, broadcasting phonograph music from the studio at Sterling Hall that was received at the university Exposition, where it was played through an amplified loudspeaker. (Randall Davidson)
Source : Davidson, Randall (2006), “9XM talking: WHA Radio and the Wisconsin idea”, Univ. of Wisconsin Press, p. 18.
Urls : http://www.oldradio.com/archives/international/argentin.html (last visited )

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