When a RADAR is being operated on the 1.5...

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Question 1 of 20tK5qUQP2bqEQnOP5zxWy

When a RADAR is being operated on the 1.5 mile range setting, what is the most appropriate pulse width and pulse repetition rate?

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Question 1 of 20

tK5qUQP2bqEQnOP5zxWy

When a RADAR is being operated on the 1.5 mile range setting, what is the most appropriate pulse width and pulse repetition rate?

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🔍 Key Concepts

• Pulse width (PW) determines minimum range and range resolution of the radar • Pulse repetition rate (PRR or pps) must be low enough that echoes from the farthest range return before the next pulse is sent • The relationship between maximum unambiguous range and pulse repetition rate

💭 Think About

• On a 1.5 mile range, do you need very long pulses or relatively short pulses to separate closely spaced targets near your own ship? • If the radar can show out to at least 1.5 miles, should the pulse repetition rate be very high or moderate so that the echo from the farthest target returns before the next pulse? • Which combination of PW and pps seems appropriate for a short-range scale rather than for long-range search?

✅ Before You Answer

• Recall that shorter pulse width improves close-range resolution but reduces energy in each pulse • Check that the PRR (pps) is not so high that an echo from 1.5 miles could arrive after the next pulse has already been transmitted • Eliminate any option whose pulse width looks more suitable for long-range operation instead of a 1.5 mile scale

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Question 1 of 20

When a RADAR is being operated on the 1.5 mile range setting, what is the most appropriate pulse width and pulse repetition rate?

0.25 μs PW and 1,000 pps.

0. 05 μs PW and 2,000 pps.

1.0 μs PW and 500 pps.

2.5 μs PW and 2,500 pps.

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Question 1 / 20tK5qUQP2bqEQnOP5zxWy

Question 1 of 20tK5qUQP2bqEQnOP5zxWy

When a RADAR is being operated on the 1.5 mile range setting, what is the most appropriate pulse width and pulse repetition rate?

Back

Question 1 of 20

tK5qUQP2bqEQnOP5zxWy

When a RADAR is being operated on the 1.5 mile range setting, what is the most appropriate pulse width and pulse repetition rate?

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?

Quick actions

— No credit card needed