🔍 Key Concepts

• Radar receiver sensitivity and how it affects display of echoes • Purpose of Sensitivity Time Control (STC) in reducing unwanted returns • Difference between effects on close-range echoes vs long-range echoes

💭 Think About

• Think about what kind of clutter is usually found very close to your ship on radar and how the set deals with it. • Ask yourself: does STC mainly help you see weak, distant targets better, or does it mainly prevent strong nearby echoes from overwhelming the screen? • Consider whether STC acts on the transmitted power or on how the receiver treats returning echoes over time after each pulse.

✅ Before You Answer

• Verify whether STC is a control in the receiver or the transmitter chain. • Check how STC affects strong, near-range echoes right after transmission versus weaker, far-range echoes that arrive later. • Confirm whether the function is to reduce clutter or to boost distant targets.