Which device is commonly used to assess the performance of a RADAR system at sea?

The echo box is designed specifically for evaluating and testing RADAR systems. It simulates echoes that a RADAR system would receive from various objects, allowing for effective assessment of the system's performance. By using an echo box, operators can analyze how well the RADAR can detect, track, and differentiate objects in various conditions, which is crucial for ensuring safe and effective operations at sea.

In contrast, the transmitter module primarily generates signals but does not assess performance directly. The signal analyzer is used to evaluate signal characteristics and quality but lacks the specific function needed to mimic the operational conditions faced by RADAR systems. The antenna rotator is crucial for directing the antenna for optimal coverage and detection, yet it does not assess performance either. The echo box provides a dedicated and effective means to simulate real-world scenarios to test the capabilities of RADAR systems.