What is the return signal from an object that radar displays on the scope called?

What is the return signal from an object that radar displays on the scope called?

• A. Echoes
• B. Echo
• C. Reflection
• D. Signal

Answer: (B)

Echo is the return signal from a target that radar displays on the scope. When a radar pulse is transmitted, it travels outward, hits an object, and part of that energy is reflected back toward the radar. The receiver picks up this returned energy and the display shows it as an echo at the range corresponding to the round-trip travel time. If there are multiple targets, you’ll see multiple echoes. Reflection describes the physical bouncing of energy, not the label used for the signal on the display, and signal is too generic for the specific term used here.

Echo is the return signal from a target that radar displays on the scope. When a radar pulse is transmitted, it travels outward, hits an object, and part of that energy is reflected back toward the radar. The receiver picks up this returned energy and the display shows it as an echo at the range corresponding to the round-trip travel time. If there are multiple targets, you’ll see multiple echoes. Reflection describes the physical bouncing of energy, not the label used for the signal on the display, and signal is too generic for the specific term used here.