soon afterwards, construction for the station began at the seminary. at this time, it was located in st. louis. the control room and studio for the station were located in the attic of one of the seminary buildings. the license to broadcast was issued on october 25, 1924. the station went on air for the first time the next day. it broadcast a speech about the laying of the cornerstone for the new seminary being constructed in clayton. the station was formally dedicated and began regular broadcasting on december 14, 1924. in 1927, the station moved to the new campus of concordia seminary in clayton.