Abstract
From an exploratory study which delimited as a corpus 25 hours of programming of Rio de Janeiro radio station BandNews FM, a new categorization of journalistic sources is proposed. Along the way, we discuss the difference between the concepts of diversity and plurality, considered basilar to journalism and to the very notion of democracy, in a context of increasingly precarious working conditions and the multi-tasking profile imposed to radio journalists. The data expose a series of constraints in the search for the ideal of diversification of voices on the dial and the prevalence of increasingly professional sources.
Keywords journalism; radio; sources; diversity; plurality