Rafael Diniz holds a BA in Computer Science from the Campinas State University(UNICAMP) and a Master’s degree in Informatics from the Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil. He is currently a PhD candidate at the University of Brasília. Rafael has experience in the areas of digital TV and radio (broadcasting), HF radio technologies, hypermedia and multimedia systems, computer graphics and electromagnetic spectrum management. Mr. Diniz is a member of the Saravá colective and supports the free/community radio and TV movements in South America. In the 2000’s Rafael participated heavily in the Brazilian Indymedia network and the free software movement. In the 2010’s Rafael worked on the development and installation of the first community DTV ISDB-T channel in the world, broadcasting from Buenos Aires on channel 20, and in the deployment of two digital HF networks in the Amazon Forest region of Brazil with dozens of stations.