[3] It was owned by North Central Indiana Broadcasting and featured programming from the CBS Radio Network.

The call letters, WIOU, were chosen by Naftzger's wife, Alma, since all were in debt to start the station.

The main transmitter is a Harris MW-5A (circa '78) utilizing a single forced air cooled metal/ceramic triode vacuum tube (type number 3CX2500F3) in the final RF amplifier stage and a single forced air cooled tetrode vacuum tube (type number 4CX3000A) as a pulse duration modulator (PDM).

Due to the innovative design of this legacy rig, plate efficiency in the RF final amplifier stage is on the order of 92%.

The antenna system consists of four quarter wave towers in a phased array aligned in a single row to achieve greatest signal to the North during daytime operation.