Country-western station KACE has new call letters Southern California’s only FM, stereo country-and-western radio station has new call letters, officials ef KACE in Riverside have an nounced. Programming Director Arlen Sanders said Wednesday that KCNW is the new name for KACE-FM, 92.7 megacycles, which is based on Lin coln Avenue. Sanders said the change was made because “we wanted to have a separate identity for the FM stereo station.” KACE-FM carries the same programs as KCNW from 6 a.m. to sunset and then signs off, he said. The change Was approved by the Federal Communication Commission and effective last Saturday.