An analytic study for the effect of antenna height on line-of-sight VHF/UHF communications coverage distance applied to Baghdad city . Periodicals of Engineering and Natural Sciences, [S. l.], v. 7, n. 4, 2019. DOI: 10.21533/pen.v7.i4.1799. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/1799. Acesso em: 2 aug. 2026.