In this paper radio waves in the 2.44 GHz range LOS propagation in the long irregular form corridor have been researched. The D-Link and Trendnet wireless routers have been used as signal sources in the experiments. The experiments have been performed under the three scenarios. The results have been processed using some statistical methods and compared with the log-distance path loss model. Some amplification effects that require further investigations have been determined. The results can be useful for indoor radio wave propagation modeling and analysis.