Abstract: The Telecommunication word refers to field who lend a big help for users. This sector sustained continuously in a fullness without to carry on development. Third generation, the Mobile Station (MS) are developed and the mobile services are increased. In order to reach a best quality of service, we must consider a lot of parameters, how the transmitted signal is affected and plan the communication network. In this fact, the empirical path loss propagation models have important effect in Radio Mobile systems and have found favour in both research and industrial communities owing to their speed of execution. This study present a comparison between empirical models.