How far must you be from a speed detection warning sign when operating radar?

When operating radar, it is essential to be aware of the legal and procedural requirements surrounding speed detection. In many jurisdictions, maintaining a minimum distance from a speed detection warning sign—often categorized as a threshold to ensure clarity and fairness in speed enforcement—is mandated. Being 500 feet away from such a sign provides adequate distance to ensure that the radar readings are taken in an area where drivers may have had sufficient time to adjust their speed in response to the sign, ultimately supporting the integrity of the speed enforcement process.

This distance helps minimize potential challenges against the enforcement action based on the argument of the drivers not being aware of the speed limit change. Establishing a proper distance fosters a more reliable and defensible speed measurement, which is crucial for law enforcement officers while performing their duties and upholding public safety.