This article examines the reality of Spanish university radio, a relatively recent and poorly studied reality (only 40 years since Radio UNED began its first recordings). University radio in Spain is very heterogeneous and diverse, these features are clearly reflected in one of the parameters of analysis of this phenomenon; the profile of its contributors and / or participants. In this sense, Spanish university radio agglutinates a wide range of possibilities, from broadcasters who make their broadcats available to the university community as a whole (Professor-Research, university staff and students) as well as to the rest of society, building bridges with them and bringing about the participation of anonymous citizens, associations or NGOs. At the other extreme, there are radio stations that only allow the participation of students from the area of information science, configuring them as authentic practical platforms for these students, and they receive additional training that may be essential in order to gain access to the labour market. This has been evident on many occasions, and we have corroborated this in interviews carried out with various partners and those in charge of the stations.