KRTO (97.1 FM) is a radio station broadcasting an Old School Adult Contemporary format. Licensed to Guadalupe, California, USA, it serves the Santa Maria-Lompoc area. KRTO stands for "Concierto" which was the old Spanish Top 40 format station that was run by Emerald Wave Media. By 2007, Emerald Wave Media retired the station, and moved its Spanish station "La Buena" to the 105.1 FM frequency held by Concierto to obtain a cleaner signal towards the Santa Ynez Valley (La Buena interfered with the signal from Ventura's KFYV-FM 105.5 FM). Since 2008, Mega 97.1 FM has been on the air with its current Oldies format. The station earns moderate ratings, despite its low advertisement output.