As a low-powered station, WCOM-LP only produces a 100-watt signal; as such, it cannot be heard far from the tower. Its limits are just before the Chapel Hill Public Library and just past Weaver Street Market in Carrboro. During the afternoons, Fayetteville station WRCQ often bleeds over into WCOM-LP's radio space, due to WRCQ's high-power transmitter being fairly close by (about 60 miles).
In June 2004, WCOM-LP began broadcasting a test signal—a 30-minute loop in English and Spanish explaining the goals of the station. Since the technology was not yet in place to link the studio to the transmitter, that test signal came from a CD cabinet at the base of the transmitter at Scroggs.