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The aim of this paper is to evaluate and compare impacts of mechanical and electrical down tilt angles of antenna systems to the downlink performance of the sulaymaniya base station. By depending on same height, in three dimensions. The effect of mechanical and electrical antenna down tilt angles have been studied in terms. Simulation studies are performed for sulaymaniya base station. Using the same height measurement by power meter simulator modeling of electrical and mechanical antenna tilt and propagation in three dimensions. In this paper a comparison made between the mechanical and electrical tilt antenna angle for five different intersite directions by choosing Alinaji, Ashty new , Bakhtiary, Industry, and Shoqakan sites in sulaymaniya base station, using the same height, in three sectors. Simulation results indicate that optimum down tilt angle depends on the network environment also showed that different environments may lead to different optimization results in terms of capacity and coverage performance.

comparison between electrical and mechanical antenna tilt angle in sulaymaniya mobile phone base stations