🔍 Key Concepts

• SART (Search and Rescue Transponder) operating principle on X-band radar • How SART test signals appear on surrounding ships’ radar screens • The purpose of testing vs. actual distress operation in GMDSS equipment

💭 Think About

• If you were on another ship’s bridge and saw a SART test near a busy harbor, how might you interpret that signal on your radar? • Which options describe realistic, documented concerns in GMDSS and radar operations, and which sound more like made‑up technical problems? • Think about international distress systems: what is the biggest risk of unnecessary or prolonged transmission on distress-related frequencies?

✅ Before You Answer

• Verify how a SART signal is displayed on a standard X-band radar and what pattern it produces. • Consider which answer choices involve potential false distress alerts or interference to other vessels’ equipment. • Eliminate any choices that suggest damage to equipment or radar screens that is not normally associated with modern marine radars and SARTs.