What is a radar detector? It is an electronic device that tips a motorist off if radar equipment, as used by the police for example is anywhere in the vicinity. The object of the exercise is therefore to avoid radar traps and therefore speeding tickets.
The radar guns used by law enforcement officers is used to measure the speed of a moving vehicle or object, relative to a fixed point. There are two core components to the radar detector, a transmitter which sends out a radar signal, and a receiver which collects returning data.
In its simplest sense, radar is used to work out the distance of one object from another. It stands to reason therefore that if the distance of a moving object can be recorded twice, and the distance moved by the object, the speed of that object can be easily calculated.
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