🔍 Key Concepts

• North-up vs. head-up radar orientation • Difference between true motion and relative motion displays • What "stabilized" means in radar (using gyro/compass input to keep bearings referenced to true north)

💭 Think About

• Ask yourself: If north always stays at the top of the screen, are targets and your own ship rotating around, or is the screen aligned to a fixed geographical reference? • Which term describes a display where bearings are referenced to true north rather than to your ship’s current heading? • Which of these options clearly refers to how the picture is oriented versus how the targets move relative to your own ship?

✅ Before You Answer

• Identify which choice describes orientation to true north rather than to the ship’s heading • Eliminate any answer that obviously refers only to relative motion of targets rather than screen orientation • Consider which term would require heading or gyro stabilization to keep north fixed at the top