When installing radio systems, wave propagation models are necessary to determine propagation characteristics for any arbitrary configuration. The CST® STUDIO SUITE® software package can be linked up with WinProp software to simulate the radiation characteristics of an antenna and its performance in complex environments. The wave propagation methods in WinProp use the calculated radiation pattern to calculate coverage in an electrically large environment, while the full-wave 3D solvers in CST® STUDIO SUITE® are used to design and simulate the antenna itself.