What is the outcome of panning with a radar device?

• A. It increases the measured speed.
• B. It maintains constant speed readings.
• C. It causes radar to interpret its own motion as speed.
• D. It enhances the accuracy of speed detection.

Answer: (C)

Panning with a radar device refers to the technique of moving the radar unit in a sweeping motion to capture speed measurements from moving vehicles. When panning occurs, the radar device can interpret its own movement as speed, leading to potential inaccuracies in the recorded speed of the target vehicle. This is because the radar measures the change in frequency of the returned signal, and when the device is in motion, it can mistakenly account for that motion when calculating the speed of the vehicle being tracked. Therefore, the motion of the radar unit can introduce erroneous readings, affecting the reliability of the data collected.

In contrast, options that suggest an increase in measured speed, constant speed readings, or enhanced accuracy do not accurately represent the implications of panning with a radar device. Instead, panning typically introduces complications in speed measurement due to misinterpretation of the radar's own movement.