When a RADAR is being operated on the 48...

Question 1 of 27070La2f67PnngtwW0xXOHv7

When a RADAR is being operated on the 48 mile range setting, what is the most appropriate pulse width (PW) and pulse repetition rate (pps)?

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Question 1 of 27070

When a RADAR is being operated on the 48 mile range setting, what is the most appropriate pulse width (PW) and pulse repetition rate (pps)?

🔍 Key Concepts

• Long-range RADAR settings typically use longer pulse widths to increase energy and maximum range, but this reduces range resolution. • Pulse repetition rate (pps) must be low enough that echoes from the maximum range return before the next pulse is transmitted. • Relationship between maximum unambiguous range and PRR: higher PRR = shorter unambiguous range; lower PRR = longer unambiguous range.

💭 Think About

• For a 48-mile range scale, should you favor short or long pulse width to detect distant targets, and why? • How does increasing the pulse repetition rate affect the maximum unambiguous range? Does 2,500 pps or 500 pps better suit a 48-mile range? • Which combination (PW + pps) looks more like a "long-range" setting rather than a "harbor/short-range" setting?

✅ Before You Answer

• Identify which choices use a lower pps suitable for longer maximum unambiguous range. • Identify which choices use a longer PW appropriate for sending more energy to reach 48 miles. • Eliminate any combination that looks more like a short-range / high-resolution setting (short PW with high pps).