What frequency shift corresponds to K-Band at 1 mph?

• A. 50
• B. 72
• C. 83
• D. 89

Answer: (B)

In the context of radar technology, frequency shift refers to the change in the frequency of the radar signal that occurs due to the Doppler effect when measuring the speed of an object, such as a vehicle. The K-band operates specifically in the range of approximately 24.05 GHz to 24.25 GHz.

When a vehicle is moving at a speed of 1 mph, the frequency shift can be calculated using the formula derived from the Doppler effect, which takes into account the speed of the radar signal and the speed of the object. For K-band radar, the frequency shift for a target moving at 1 mph is determined to be approximately 72 Hz.

This value falls on the correct utilization of the K-Band's properties as it represents the expected frequency shift when calculating speed accurately. Thus, selecting 72 Hz as the frequency shift at 1 mph reflects an understanding of the relationship between the speed of the vehicle and the radar's settings in this specific band.