 At the rear of KCBC's Grand Avenue property there was a barn where they installed FM receivers in the city's buses.The plan to target music and advertisements to the city's bus riders was not a profitable one, and after just four years, KCBC-FM left the air, donating their transmitter to the Des Moines Public Schools.The school district used the transmitter to put KDPS on air the same year at 88.1 FM.