It is a radar dedicated to Air Traffic Control (ATC). It lets the controller watch the other FS aircrafts: AI Traffic, FS multiplayer or IBNet. This radar is especially well suited for online flights with a controller in charge of guiding aircrafts along the correct path. With IBNet, it can be used for military purpose to guide hostile interception or for military ATC. The best way to have comprehensive information about this product is to read the documentation (in English). It explains the radar installation and usage in details.