Murad, Ridwan (PhD)Berhanu, Teshome2018-12-132023-11-282018-12-132023-11-282018-06http://etd.aau.edu.et/handle/12345678/15084Microwave links play an important role in the broadcasting industry by linking main radio and television studios with remote transmitter stations. With the currently increasing number of locally and internationally broadcasted television and radio stations the need for such links is expected to increase significantly. Furthermore, the expected links are also required to overcome the dynamic nature of the country’s main cities. To emphasize on the matter, the country’s main broadcasting corporation, i.e., Ethiopian broadcasting corporation (EBC), can be taken as an example. The corporation currently utilizes microwave links for transmission of programs from production studios to transmitter station and also from the temporary outside broadcast (OB) studios to main head office studios. But due to topological nature of Addis Ababa and intensive constructions of new tall buildings microwave links have become one of the many reasons for most live television broadcasting failures. Overcoming the stated problem on locally existing microwave links requires a careful planning and analysis that are in phase with the dynamics of the cities. This thesis thus provides a solution for improving the quality of microwave links that are currently utilized by Ethiopian Broadcasting Corporation (EBC). To accomplish the task, three frequently utilized microwave link sites, located at Addis Ababa stadium, Janmeda, and Millennium hall, are selected. Afterwards, planning and antenna height selection for repeater stations were performed. Based on the planning ten repeater sites are found to be in line of sight to the temporary stations. Finally, the quality of established link between the repeaters and temporary studios were analyzed using a simulation software namely Radio Mobile. The analysis has shown that, as compared to existing microwave links the proposed solution improved field strength by 61.66% and fading margin by 64.44%. Furthermore, out of selected repeater sites Gomakuteba is found to be the best links for Janmeda & Milinim Hall whereas Legehar for Stadium. In general, the thesis has set preliminary results that are found to be promising.en-USMicrowave linkRadio Mobile software toolsField strengthTotal Propagation lossfade marginThesis