This is an unofficial web page for listeners of WSUI radio—910 AM in Iowa City. This website is not controlled by the University of Iowa or Iowa Public Radio.

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Click here for WSUI stream audio.

Also, the live stream audio from sister station, KSUI (91.7 FM), may be heard by clicking here.

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Official website: Iowa Public Radio

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WSUI broadcast schedule

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About Live from Prairie Lights

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WSUI Transmitter
Location & Specifications

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Contact WSUI.info

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History of WSUI, 1919-1999
Sara Epstein, FYI, 04/09/1999

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"Broadcasting from the campus of the State University of Iowa began in 1911 when a 2000-watt transmitter for code communication was set in operation on a regular schedule. This equipment was operated under the call letters 9YA." —Education's Own Stations by S. E. Frost, 1971 - p. 131

"The 1911 code transmitter, 9YA, at State U. of Iowa, Iowa City, had blossomed by 1919 into a voice-and-music station operating on a regular schedule."—Broadcasting, 1962, volume 62, p. 120

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Is WSUI the oldest educational broadcast station west of the Mississippi?

QST, January, 1917, page 46 (PDF)—Also reported by Wireless Times, April 1917, p. 516
"RADIO LESSONS BY WIRELESS"—A broadcast schedule for "a short radio lesson" and "University news" is publicized by 9YA, the experimental call sign for what was later to become WSUI. "9YA was licensed to the State University of Iowa — the 'Y' in the callsign signified that it was operating under a Technical and Training School license." earlyradiohistory.us/1917_9YA.htm

   Editor's note: Scheduled voice and music broadcasts to the general public by other stations had existed since 1916, so it is possible these 1917 9YA broadcasts were in voice, not Morse Code.
   Although a license may have been granted in 1919, the use of the call letters 9YA predates that year.