When conducting a Range Accuracy Test, the slight tolerance of +/- 1 ft is applied at which distances?

In a Range Accuracy Test, the slight tolerance of +/- 1 ft is specifically applied at the distances of 50, 100, and 150 feet. This range was likely selected as it represents key increments that can provide a good assessment of the accuracy and precision of the radar or lidar systems being tested.

50 feet is often a practical distance for real-world applications, while 100 feet and 150 feet allow for further evaluation of the system's performance at varying ranges that are commonly encountered. By testing at these distances, it is possible to ensure that the equipment can consistently measure with the required accuracy across a reasonable span of operational ranges.

Checking the accuracy of readings at these distances ensures that operators can rely on the equipment to perform effectively in typical scenarios they will face during use. This focus on intermediate ranges validates that the system maintains its accuracy capabilities when deployed in real-world conditions.

The selection of other options does not align with the standard practices for range accuracy testing, as they either include ranges that are less common or do not provide a broad enough assessment across the distances frequently used in enforcement scenarios.