Basic Concepts of Radar Detectors
One first has to know what they are detecting, in order to understand how radar detectors function.
Radar detectors and Lidar laser gun
Similar to conventional radar guns, police may use handheld lidar systems. The system activates a small camera when a speeding car is detected.
Radar Detectors and Radar Signal Jamming
A conventional radar detector, which detects police radar with a simple radio receiver, is a completely passive device. A more active role in eluding the police is played by sophisticated detectors.