Which test ensures that all display indicators of a radar are functioning properly?

The light test is specifically designed to ensure that all display indicators of a radar system are functioning properly. During this test, the operator checks each visual indicator, including lights and displays, to confirm that they illuminate and perform as expected when the radar is operational. This ensures that the operator receives accurate and clear information, which is critical for the effective use of radar technology in speed measurement and law enforcement applications.

While other tests, such as the performance test, calibration test, and functionality test, serve important purposes in verifying the overall accuracy and reliability of the radar system, they do not specifically focus on checking the operational status of display indicators. The performance test generally assesses the accuracy and precision of the radar system under various conditions, the calibration test ensures that the radar is measuring correctly according to established standards, and the functionality test may cover broader operational aspects of the radar but is not limited to the display indicators. Therefore, the light test is the most appropriate method for confirming that all display indicators are working as intended.