Modern radar guns, also known as speed guns, use this wave property by transmitting a small beam of known frequency, then receiving the same signal back after it bounces off the targeted object. Depending on whether the object is moving toward or away from the gun, the frequency of the signal is different from the original signal. From that difference, the radar speed gun can calculate the object’s speed on successive readings. Think of it this way: you are trapped in a room where one of the walls has just started to move towards you. It’s pitch-black. You can’t see a thing. All you have in your hands is a soccer ball. If you throw the soccer ball at the wall that’s moving towards you, you can tell how close the wall is by how long it takes for the ball to rebound off the wall and come back to you.
If you get a speeding ticket, a New Jersey traffic ticket lawyer can help you fight the ticket in court. Call New Jersey traffic ticket lawyer Dan Matrafajlo today for a free initial consultation.
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