This paper describes a system using a new integrated package called SYMl3L. The total system combines the SYMBL software, an interactive display package, a government supplied data base of topographical information, and an associated workstation, which provides high resolution color graphics. One of the outputs features an automated topographic data base verification with two and three dimensional views. This latter option proved t o be a very important one when establishing radio coverage. Other options allow the display of data in various ways on the CRT screen, color plotter or laser printer.The total system calculates the radio wave propagation receiver points at a rate exceeding 100 points/second, with any desired density and over any desired area coverage.