Before conducting a ground test with an aircraft RADAR, what should the operator ensure?

Ensuring that the area in front of the antenna is clear of personnel is critically important before conducting a ground test with an aircraft RADAR. This precaution helps prevent potential harm to individuals who might be exposed to the radar emissions, which can be hazardous. High-power RADAR systems can emit strong microwave signals that can cause injury, especially to unprotected skin or eyes.

It is essential for operators to prioritize safety by confirming that no one is in the danger zone around the antenna. This practice ensures compliance with safety regulations and protects personnel from unnecessary risks during testing.

While other factors, such as calibration of the RADAR, operational communication lines, and fuel levels, are important for the overall functionality and readiness of the aircraft, they do not directly address the immediate safety concerns involved when powering up the RADAR system.