A surveillance system is configured to detect a rotary-wing aircraft approaching a fixed facility and provide a warning upon detection. The device is intended to increase the degree of freedom in design while minimizing an increase in weight and reducing vibration and noise from the front fender. To analyze a binary in an interpreted environment, a mechanism is used to indicate points in the program at source, intermediate, or binary showing where information about the system is to be trackedprofiledanalyzed. The fifth transistor has its gate connected to the first node.