KAUS began broadcasting May 30, 1948, on 1480 KHz with 1 KW power (fulltime). It was a Mutual affiliate, owned by Cedar Valley Broadcasting Company, Incorporated. Studios were at 405 North Main Street.
KAUS' transmitter site is adjacent to its studios south of Austin. It originally began broadcasting with the call letters of KAAL and housed the earliest incarnation of the television station known today as KAAL (formerly KAUS-TV) in its rural Austin studios. KAUS AM had been on the air since at least the mid 60's with a pop/top 40 format and the TV station was KMMT, an ABC affiliate.