Here you can find your own jammer

A radar scrambler has become the newest addition to the ongoing battle between speeding drivers and traffic police. Available for less than $100, this device can be purchased by Americans. For $199.95, a more advanced model is capable of jamming both police liDAR and older RF radars. These scramblers outshine traditional radar detectors by emitting signals that perplex police radar systems, making it impossible to precisely determine a driver's speed.
In numerous European countries, including the UK, and certain states in the US, the use of radar detectors is prohibited. However, Mike Churchman, the founder of Rocky Mountain Radar in Littleton, Colo., points out that scramblers are not subject to the same regulations as radar detectors. This is because scramblers do not detect radar signals; instead, they utilize a high-gain antenna to reflect incoming signals back to the radar gun, while simultaneously emitting another radio signal to confuse the receiver.
The company's premium Phazer scrambler boasts an infrared LED that emits invisible infrared pulses through the car's windshield. Lidar utilizes these pulses to interpret reflections and determine the car's distance. However, speed measurement values may be skewed due to the calculation method based on distance readings.
Churchman reported that Oklahoma and Minnesota have passed legislation to outlaw our practices. The law in Minnesota took effect in August. Despite being investigated by the FBI and the Federal Trade Commission, Churchman stated that no enforcement actions have been initiated against us.
The Pentagon's substantial investment in electronic warfare systems, which utilize similar technology to evade enemy radar detection, contrasts with the Air Force's interest in acquiring laser blocker to obstruct enemy navigation systems.