In 2002, the Federal Communications Commission approved a 1996 application from David Ingles Ministries Church Inc. for a construction permit for this station. On January 6, 2003, the station took the call sign KDIM.[2] Under David Ingles Ministries, KDIM was part of the Oasis Radio Network.
In 2021, KDIM was sold to the Educational Media Foundation for $2.415 million.[3] When the sale closed on December 2, 2021, the station began airing EMF's Air 1 network. Air1 had been heard on KWRI (89.1 FM) at Bartlesville and two translators in the Tulsa metro area, which became KKLB and joined the K-Love network. The station changed its call sign to KTUA on December 21, 2021.