How does radar track my speed, and how is laser detection different?

Radar involves sending out radio waves and listening to how their frequency changes when they strike an object, such as a vehicle. This is an
effective speed tracking device because the speed of the vehicle or other object affects the change in frequency. By contrast, laser detection measures the speed of a vehicle by sending out laser light and measuring the distance from the laser gun to the vehicle over time. The change in the distance provides a way to calculate the speed of the vehicle. When a police officer holds a gun toward a vehicle’s license plate, they must make sure to hold it steady to get an accurate reading.

16.08.2020

How does radar track my speed, and how is laser detection different?

Radar involves sending out radio waves and listening to how their frequency changes when they strike an object, such as a vehicle. This is an
effective speed tracking device because the speed of the vehicle or other object affects the change in frequency. By contrast, laser detection measures the speed of a vehicle by sending out laser light and measuring the distance from the laser gun to the vehicle over time. The change in the distance provides a way to calculate the speed of the vehicle. When a police officer holds a gun toward a vehicle’s license plate, they must make sure to hold it steady to get an accurate reading.