After a hundred-year dominance of analogue technology, the beginning of the 21st century was marked by the advent of the digital era in which traditional FM radio had to undergo the ensuing process of convergence in technical, technological, content and social terms. The Internet abolished the monopoly of the radio frequency (RF) spectrum as the dominant way of distributing the radio signal and provided radio with numerous options for reaching new listeners and/or users of radio websites and radio stations’ official social media profiles. Auditivity is a fundamental feature of analogue (FM) radio, which is still most often consumed via car and home receivers. However, in the digital environment and with appropriate digital tools, traditional radio expands its offer to multimedia content, interaction and participation, and particularly in terms of the ways of consumption that can take place via smartphones, computers and cable television. Yet, this is not the only change caused by digital technology. In point of fact, digital radio (DAB+) is strongly imposed in all developed media environments. Specifically, it was in 2022 that the first concessions for DAB+ were awarded in the Republic of Croatia. Despite the many challenges of the digital age, radio is still a personal and emotional medium, of extremely high audience (Bottomley 2020). Croatia is the fourth country in the EU in terms of the number of radio stations per million inhabitants (38 radios per million inhabitants) (Mučalo & Šulentić 2021). In 2021, there were 137 FM radio broadcasters that broadcast on 141 channels, the public service broadcaster Croatian Radio with 12 channels, and 40 e-radio broadcasters that broadcast on 66 Internet channels (AEM 2021a, AEM 2021b). Although the changes in traditional radio are invariably attracting the interest of the world scientific community, there is no recent independent and scientifically based research on the medium of radio in Croatia. This fact constituted my initial motivation for choosing this topic for the doctoral dissertation. The main research question was how much the Croatian radio scene had adapted to current digital standards and European practices, i.e., what the real effects of digitization in domestic radio broadcasting in 2021 were. Three surveys were conducted with the following research objectives: to establish (1) whether there is migration of traditional radio audiences towards listening to radio programmes via digital options and what the extent of this migration is (CATI method on a deliberate quota sample), (2) what status the websites of all radio stations in the Republic of Croatia have and what they are like in terms of content (mapping), and (3) what experts think about the way traditional FM radio stations operate in the circumstances of convergence (in-depth semi-structured interviews with nine editors-inchief). III A telephone survey was conducted in the city of Zagreb in the period from 25 November 2020 to 5 December 2020. It covered the sample of 300 radio listeners aged 18 to 55. Most of them were employed and their level of education was predominantly secondary. Compared to 3% of listeners who consumed radio via digital devices in 2015 (AEM 2015a), the results of this survey show an increase to 16%. In this respect, one of my hypotheses was rejected because statistical testing of the results showed that the age of listeners was not directly correlated to listening to radio on digital platforms. Mapping of the websites of all broadcasters, e-radio and public service in the Republic of Croatia (N=157) was conducted in June 2020. It relied on four basic thematic categories (news, communication and promotional content and media convergence indicators). The results show that the websites under research are outdated, focused on static elements, without a daily news offer, yet with common and typified multimedia breakthroughs. The following two hypotheses have been confirmed: programme streaming on online radio sites makes less than 10% of the total content offer of each radio site, i.e., the websites of national, regional and county radio stations offer more types of content than the websites of city and municipal radio stations. Semi-structured interviews with nine editors-in-chief were conducted online between 5 and 13 May 2021. The selection of nine respondents was made on the basis of ranking according to the criterion of the number of items of content identified during the process of mapping websites. While everyone agrees that the radio website contributes to the listenership and popularization of FM radio, the fact is that radio websites are largely ignored (lack of understanding of the radio owners, shortage of money and of professionally trained employees, including lack of motivation). Among the highest ranked websites, there is only one case in which the website is edited by a specifically engaged professional. Therefore, the fourth hypothesis is partially confirmed. In conclusion, the dissertation positions the medium of radio in Croatia at the beginning of the 21st century, that is, in the period of pronounced digital transition to new ways of distributing, communicating and consuming media content. The convergence of radio in our country is slow, yet still occurring. The research results raise new questions, two of which stand out: (1) “What is the prospect of local radios given the number of national, regional and county FM stations in Croatia?” and (2) “How to educate media professionals who are supposed to acquire the necessary competencies for working in a converged media environment?”