Nexrad Radar Uses a Frequency of 2

question 24

Multiple Choice

Nexrad radar uses a frequency of 2.7 GHz to measure the speed of cloud systems.The radio waves from the transmitter are sent outward to the cloud system and reflected back,Doppler shifted.A Nexrad system observes clouds moving toward the transmitter at 21 m/s.What is the difference between the transmitted frequency and the frequency received after reflection off the cloud surface?

• A) 380 Hz
• B) 760 Hz
• C) 570 Hz
• D) 190 Hz

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Average Product

The output per unit of input, calculated by dividing the total output by the number of units of the input.

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