Prior to testing any RADAR system, what should the operator first ensure?

Before testing any RADAR system, the operator must first ensure that no personnel are in front of the antenna. This is crucial for safety, as RADAR systems can emit harmful microwave radiation. Standing in front of the antenna during operation could expose individuals to these harmful emissions, potentially leading to serious health risks. Therefore, ensuring a clear area in front of the antenna is the top priority before any other operational checks or system testing can be conducted.

While other factors, such as the system being fully powered, calibration being complete, and optimal weather conditions, are also important for the proper operation of the RADAR, they do not take precedence over safety protocols. Ensuring that no personnel are in a potentially hazardous area safeguards lives and ensures compliance with safety regulations.