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tuning-fork Police radar units can be verified for accuracy by utilizing a “tuning fork”. The radar is not actually “tuned” but simply verified as being accurate by the use of the tuning fork. The word “tuning” comes from the fact that the same type of forks are used to “tune” musical instruments. The tuning fork is made out of aluminum, and it’s length and shape is designed to vibrate at a set frequency each time it is struck. Continue reading “Using Tuning Forks to Check a Police Radar” →