Your radar displays your ship off center. As...

Question 1 of 2707066636ee928f7522a1c519f5c

Your radar displays your ship off center. As you proceed on your course, your ship's marker moves on the PPI scope while echoes from land masses remain stationary. What is this display called?

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Question 1 of 27070

Your radar displays your ship off center. As you proceed on your course, your ship's marker moves on the PPI scope while echoes from land masses remain stationary. What is this display called?

🔍 Key Concepts

• Difference between true motion and relative motion radar displays • What it means when the ship's marker moves but land echoes stay fixed on the PPI (plan position indicator) • How stabilization and orientation (head-up, north-up) affect what moves on the screen

💭 Think About

• Ask yourself: in this situation, which appears to be moving on the screen – your own ship, the land, or other targets? How does that relate to true vs relative motion? • Consider: does the question describe anything about the picture being aligned with the ship’s head, north, or off-center, or is it mainly about what is moving and what is fixed? • Look at each choice and match it to a radar concept: which term describes the way targets move on the screen, and which describe where the own-ship is placed or how the display is oriented?

✅ Before You Answer

• Be clear on whether land masses should move or stay fixed in a true motion display • Separate terms that describe motion type (true vs relative) from those that describe orientation/centering (head-up, off-center, stabilized) • Verify which display type is defined as: "own ship moves on a fixed geographic background" before choosing your answer