COMPARATIVE EVALUATION OF SPECTRUM OCCUPANCY OF THE BROADCASTING BANDS IN URBAN, SUB-URBAN AND RURAL ENVIRONMENTS . Nigerian Journal of Technology, [S. l.], v. 41, n. 6, 2023. DOI: 10.4314/njt.v41i6.11. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/2875. Acesso em: 23 apr. 2026.