Beginning in the 1970s Chicana and Chicano organizers turned to community radio broadcasting to educate, entertain, and uplift Mexican American listeners across the United States. In rural areas, radio emerged as the most effective medium for reaching relatively isolated communities such as migrant farmworkers. And in Washington’s Yakima Valley, where the media landscape was dominated by perspectives favorable to agribusiness, community radio for and about farmworkers became a life-sustaining tool. Feminista Frequencies unearthed the remarkable history of one of the United States’ first full-time Spanish-language community radio stations, Radio KDNA, which began broadcasting in the Yakima Valley in 1979. Extensive interviews revealed the work of Chicana and Chicano producers, on-air announcers, station managers, technical directors, and listeners who contributed to the station’s success. Monica De La Torre weaved these oral histories together with a range of visual and audio arti...