In the last few years the demands of communication and data transfer are growing rapidly. To achieve good signal quality and to increase data transfer speed, the site specific model in wireless communication is used to analyze the effect of geographical condition. In this paper we discussed the propagation model based on ray tracing and physical optics with near-to-far field method, in urban area modeling by considering the influence on transmitter height at 800 MHz, 2.3 GHz, and 38 GHz. The simulation was carried out for our campus area to model urban area. The result obtained from the simulation shows the path loss value increases as the transmitter's height and the frequency increases. Path loss exponents obtained from urban areas model in line of sight condition are range from 1.8-2.2.