What is tested during a light test of a radar device?

• A. Only the radar's speed accuracy
• B. All display indicators and lamps
• C. The device's overall reliability
• D. The alignment of the radar's antenna

Answer: (B)

During a light test of a radar device, all display indicators and lamps are checked to ensure they are functioning correctly. This test is important because it verifies that the operator can see the operation of the radar device through its indicators, which provide vital information about its status and performance. If any of the lights or displays are malfunctioning, it could lead to misinterpretation of the speed readings or a failure to recognize when the device is operational or in error mode. This comprehensive assessment helps maintain the integrity and reliability of the radar device, ensuring that it performs accurately during enforcement activities.

Other aspects like speed accuracy, overall reliability, and antenna alignment, while important in the radar's operation, are not the focus of the light test specifically. Instead, those areas would typically be evaluated through different testing protocols.