![]() There are certain speed traps used by police that utilize constantly transmitting police radar that are designed to be harder to detect by those who use radar detectors. In the case of Virginia, the fine for being caught with a radar detector is very small and much less than a speeding ticket and their is pending legislation that may remove the restriction altogether. Radar detectors are not illegal to use in the United State with a few exceptions which are in the Commonwealth of Virginia, the District of Columbia, some providences of Canada, and by commercial truck drivers and on a military base. Generally police radar such as this is easily detected at great distance with a radar detector. The first is continuously transmitted or constant-on (CO) operation. Police radar can be operated in two modes. Unlike police laser, police radar directly determines a vehicle’s speed by measuring the doppler (speed induced) shift of the return of its transmitted frequency (think of the sound you sometimes hear of an approaching or receding train or emergency vehicle). RADAR is an acronym for RAdio Detection And Ranging, Police radar is radar used by police for measuring drivers’ speeds and for issuing speeding ticket citations. What is police radar and how does it work? How is police laser different from radar?.How can I fight a radar speeding ticket?. ![]() How do police use radar from a patrol car?.What is police radar and how does it work?.
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