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Reply to "Speeding Defense?"

The requirement to take readings for several seconds (a history) is based upon the manufacturer's ability to guarantee the accuracy of the measurement. The devices can measure speed instantaneously, but the accuracy of the measurement is based upon many factors, like the relative motion of the radar device compared to the vehicle its measuring, the angle at which the radar device is relative to the motion of the vehicle, etc. Conditions for measurement are not ideal and quite variable. So the manufacturers specify that the measurement is reliable ONLY if the cops get so many seconds of consistent reading.

The radar at the baseball game is tri-pod mounted, immobile, and the moving object is traveling almost directly toward the instrument. The conditions are almost ideal.

cowboy from hell
Last edited by George P
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