How Does a Police Radar Gun Work?
About Radar Radar began as an acronym for “Radio Detection And Ranging” when it first came into widespread use in World War II to locate planes and ships. Using the same basic principles as bats do to see or whales use to navigate, radar measures the differences in directed radio-frequency transmissions and the return waves that bounce off an object. Radar information can be translated to yield information about the shape, size, location, distance, velocity, and even the composition of an object. Motion sensors, such as those that turn on lights or open automatic doors, are essentially simple radar devices. Police Radar Police radar is used entirely for determining speed; it does not provide information about the make or model of a car. Officers utilize three basic modes of radar in traffic situations. Continuous, or CW, radar is used primarily for unattended operation, like in those roadside trailers that notify drivers of their speed. These, however, are easy to detect by dashboard s
