Core to our business is the planning, modeling and regulating of the radio broadcast signal. We use modern cellular LTE, broadcast and SFN software tools with the newest geospatial data-including high resolution building heights, vehicular traffic, and demographics. We create transmission site specific propagation coverage models correlated to drive test field measurements, and the full Fresnel complex integral sub-path analysis is used with diffraction (2D and 3D), ducting, and reflections. In combination with the high-resolution cartography, a standard deviation of less than 3 dB of the measured signal versus predicted is typical (Read More). These capabilities are critical in the design of SFN and Geo-Targeted system operation.