 Beginning in 1929, WIBW was required to share time on 580 kHz with Kansas State University's radio station KSAC (later KKSU), broadcasting in Manhattan, Kansas.Under the terms of the shared time agreement, the university station was on the air during afternoons, with WIBW broadcasting the other times of the day.While it was common for stations to share frequencies in the early days of radio, what was unusual was that this arrangement lasted for over seventy years.