Sarah Washington is an artist and activist working with experimental radio and music. Her activities involve creating temporary radio art stations and installations, composing experimental radio dramas, giving live radio art performances, curating radio art events and festivals, and performing experimental improvised music on homemade electronic instruments. She is a founder member of the radio station Resonance 104.4fm in London and the international radio art network Radia. Notable commissions include a radio art series for the Tate Modern in 2007, and a 100-day radio station for the 30th São Paulo Bienal in 2012. She often works together with her partner Knut Aufermann in the joint radio art project they began in 2005 under the name Mobile Radio.