an electronic device used by motorists to determine Radars News Giant missile defense radar leaves Hawaii for second time KPUA
an electronic device used by motorists to determine Radars News No news is good news
an electronic device used by motorists to determine Radars News Weirdest weather in the USA Springfield News-Leader - If you don't like the weather, just wait a few minutes
a small black box that fits on the dash of a vehicle
a small device that is mounted on the dashboard of a vehicle
a small electronic device used by some drivers to detect the presence of police radar units
a small electronic device used to detect the Police's radar units from a decent distance, so you can slow down and avoid getting a speeding ticket from the police
a special device used in an automobile by drivers in determining if their speed is being monitored by local law enforcement
an electronic device used to find any radar operating in the vicinity.
A radar detector is an electronic device used by motorists to determine if their speed is being monitored. The term originates from early speed-detection technologies, in which police bounced a radio wave off a moving vehicle with a device called a radar gun that determined the vehicle's speed by the Doppler-effect-moderated change in the wave's frequency. Most of today's radar detectors detect signals across a variety of wavelength bands – usually X, K and Ka (as well as Ku, in Europe, also recently approved for use in the U.S).