🔍 Key Concepts

• RADAR receiver gain and feedback • Effect of too much coupling/feedback in electronic circuits • Difference between improving signal vs causing instability

💭 Think About

• Think about what happens in any electronic amplifier when the internal feedback or coupling becomes excessive. Does it usually make the signal cleaner and quieter, or can it create an unstable condition? • Which option describes a possible negative side effect of a receiver circuit being driven too hard or coupled too tightly? • Look at the choices that sound like clear benefits (better targets, less noise, more range) versus the one that sounds like a possible problem condition.

✅ Before You Answer

• Identify whether overcoupling would more likely improve performance or create instability. • Consider what happens to a RADAR receiver when gain/feedback is too high: does that normally reduce noise, or can it make the circuit self‑excite? • Before choosing, ask: which option could realistically be a symptom of an overdriven or overly coupled RF/IF stage in a receiver?