Abstract: The radar target simulator serves for the training of air traffic controllers. It comprises a radar device (10) detecting the approach area of a runway, and a display device (17) for displaying the real targets detected by the radar device (10). The display device generates an approach line corresponding to an ideal approach. The instructor position comprises a simulation device (18) for generating simulation targets moving continuously depending on flight parameters of a simulated airplane, which have been inputted. The real targets detected by the radar device (10) and the simulation targets are displayed together on the display device (17). The simulation device (18) is used to check the correctness of the adjustment of the radar device (10). Therefore, an airplane performing an ideal approach is simulated on the display device (17) and it is detected whether there are any deviations of the simulation target from the approach line displayed on the display device.