An indirect radar echo is caused by a...

Question 1 / 2066636ee928f7522a1c5199a3

Question 1 of 2066636ee928f7522a1c5199a3

An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer's vessel. Which of the following is NOT a characteristic of indirect echoes?

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Question 1 of 20

66636ee928f7522a1c5199a3

An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer's vessel. Which of the following is NOT a characteristic of indirect echoes?

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🔍 Key Concepts

• Indirect radar echoes (reflected echoes) vs. true echoes • How bearing behavior (does it stay constant or change?) helps identify false/indirect echoes • Typical location and motion pattern of indirect echoes on the radar screen

💭 Think About

• Think about how a reflection off your own vessel would behave: would its bearing from your radar stay fixed or change as the true target moves? • If an echo is indirect, will it reliably appear at some fixed angle (like 90°) from the true contact in every situation, or can it show up in several relative positions? • Consider which statement sounds like an absolute rule that would rarely be true in the real, messy world of radar reflections.

✅ Before You Answer

• Verify which options describe general tendencies ("usually", "almost constant") versus absolute conditions ("always"). • Check your radar knowledge: do indirect echoes commonly show abnormal motion when plotted? • Ask yourself: do indirect echoes have to appear in shadow sectors, or is that only something that can happen sometimes?

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Question 1 of 20

An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer's vessel. Which of the following is NOT a characteristic of indirect echoes?

The indirect echoes usually appear in shadow sectors.

They always appear on a bearing of 90° from the true bearing of the contact.

When plotted, their movements are usually abnormal.

Their bearing is almost constant, even when the true bearing of the contact changes appreciably.

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Question 1 / 2066636ee928f7522a1c5199a3

Question 1 of 2066636ee928f7522a1c5199a3

An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer's vessel. Which of the following is NOT a characteristic of indirect echoes?

Back

Question 1 of 20

66636ee928f7522a1c5199a3

An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer's vessel. Which of the following is NOT a characteristic of indirect echoes?

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