Digital Radio in Brazil: Indecision and Impasse After a Ten-Year Discussion

摘要

Government and radio broadcasting stations have been debating the model of digital transmission to be adopted in Brazil, without having come to a consensus. The impasse is related to the technological characteristics of the available systems (IBOC, DRM, and DAB) that are not integrally adaptable to the model of radio broadcasting, to the regulatory laws, and to the rules of the radio market in the country. Tests done with IBOC reveal that the digital system does not provide the same coverage as a quality analogical AM radio. Other aspects are the technical conditions of the Brazilian broadcasting stations and their adaptability to a digital system: 37% of them still function with valve transmitters, most of them being between AM commercial and public radio stations. As they are broadcasting stations with few resources for investment in transistorized equipment, it will be necessary to create public policies of incentive for digitalization, which would collaborate toward the sustainability of the sector. The present study presents data from a sample of 750 stations, which corresponds to 96.45% of the profile of the Brazilian radio market, and integrates the data with national research.