Many applications require detailed knowledge of antenna performance as deployed in a realistic setting. To solve such problems the complementary capabilities of XFdtd and Wireless InSite are highly effective and easy to use. Outdoor wireless systems, as well as indoor/outdoor systems, are rapidly being used for cellular, WiFi, and emergency services. We have selected several city blocks in Chicago to demonstrate how Remcom’s tools can be integrated. The gain pattern for the array antenna is computed using XFdtd while the coverage is found using Wireless InSite.