In late 1926 the station was acquired by C. L. Carrell of Chicago, who converted it into a portable broadcasting station. It joined a roster of seven stations controlled by Carrell. Portable stations could be transported from place-to-place on movable platforms such as trucks. These were generally hired out for a few weeks at a time to theaters, mostly located in small midwestern towns that didn't have their own radio stations, to be used for special programs broadcast to the local community. (Regulating "moving targets" proved difficult, so in May 1928 the Federal Radio Commission announced it was ending the licensing of portable facilities.)