How many factors may affect the correct operation of stationary radar?

The correct answer is two factors may affect the correct operation of stationary radar. In the functioning of stationary radar, the primary factors that typically influence its accuracy and effectiveness are environmental conditions and the positioning of the radar unit.

Environmental conditions include elements such as weather (like rain, fog, or snow), which can scatter the radar waves and impact the readings taken by the device. Additionally, obstacles in the path of the radar beam, like large vehicles or buildings, can cause interference or reflection that may lead to incorrect readings.

The positioning of the radar unit is also crucial. If the radar is not properly aligned with the target or is located in a place where it is too close to other moving objects, this can impact its ability to measure speed accurately. Understanding these two factors is vital for ensuring that stationary radar functions correctly and produces reliable data that law enforcement can use for speed enforcement.