An overview of independent and not-for-profit community, 'free', campus, and other radio stations which provide a wealth of material and perspectives outside of the mainstream media orthodoxy. This series constitutes a major retrospective of the work of the radio art network Radia, whose collective mission is to make radio that transcends the borders and boundaries of land and language. Mobile Radio visits each station in turn to discern their motives and inspirations, and explore the work of one of their associated artists. Radiaphiles is part of a commission for documenta 14, and will be aired in Kassel and Berlin from 17 June to 7 July 2017. This week: a conversation with Chuse Fernandez and Miguel Deza of TEA FM in Zaragoza in Spain. For more information visit mobile-radio.net.