Which of the following statements is correct?

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Question 1 of 20xshqYkOtPAkEiOysNhJU

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xshqYkOtPAkEiOysNhJU

Which of the following statements is correct?

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🔍 Key Concepts

• Typical block diagram of a marine radar receiver (from antenna to display) • Function of the I.F. (intermediate frequency) amplifier versus the video amplifier • Frequency range of true "video" signals in a radar set

💭 Think About

• Mentally sketch the order of components in a radar receiver from the antenna through the mixer, I.F. stage, video stage, and then to the display. Where does the radar return become a low-frequency "video" signal? • Think about what kind of signal the video amplifier handles: is it still a high‑frequency RF/I.F. signal in the tens of MHz, or is it already a low‑frequency pulse that can directly control the brightness on the screen? • Look at each option and ask: which pair of stages would logically be connected by a circuit that works with low‑frequency pulse (video) information rather than high‑frequency RF or I.F. signals?

✅ Before You Answer

• Verify which stage (mixer, I.F. amplifier, video amplifier, display) is responsible for converting high‑frequency signals into low‑frequency pulses suitable for display. • Check your understanding of what frequency range the term video implies in radar: is it tens of MHz, or much lower? • Confirm where, in standard textbooks’ radar block diagrams, the video amplifier sits in relation to the I.F. amplifier and the display system.

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Question 1 of 20xshqYkOtPAkEiOysNhJU

Which of the following statements is correct?

Back

Question 1 of 20

xshqYkOtPAkEiOysNhJU

Which of the following statements is correct?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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