What does the internal test of a radar device check for?

The internal test of a radar device primarily focuses on the functionality of internal components. This testing process is essential to ensure that all parts of the radar system are working as intended, which includes checking electronic circuits, signal processing, and the overall integrity of the device.

While it may seem that speed consistency and accuracy of the displayed speed are critical aspects, these elements are typically evaluated during operational or external testing rather than the internal test. The internal test ensures the radar is in proper working order before it is deployed for real-world speed enforcement situations. Environmental conditions do not pertain directly to the internal components of the radar device but rather to how these devices perform under varying external circumstances. Therefore, confirming the functionality of internal components is vital for reliable and accurate speed measurements.