TCS Consultants, Inc. has obtained 10 meter and 30 meter terrain data (DEM's) that cover the United States and terrain data the encompass almost the entire world. This is a preliminary design step, which allows TCS to determine if the microwave path is feasible based on estimated tree heights and known obstructions or existing tower height limitations.

TCS performs USGS Topographical map studies to take the next step in verifying the accuracy of the preliminary paths. TCS has obtained the USGS Maps for the entire United States via computer (as seen in the pictures) making evaluation in the field and verification fast and effortless compared to the ordering, shipping, and receiving delays previously needed to obtain USGS topographical maps. This is the last step before physical path surveys and site inspections.

These computer-based systems allow TCS to design paths in the field in those cases where a physical path survey proves a radio path is not feasible due to obstructions or other phenomenon. TCS can now save the customer both time and costs by being prepared for redesign at any point along the design phase - even while in the field.