What device is located between the magnetron...

Question 1 of 27070UxxddOh116VQSXUeRgVC

What device is located between the magnetron and the mixer and prevents received signals from entering the magnetron?

Question 1 of 27070

What device is located between the magnetron and the mixer and prevents received signals from entering the magnetron?

🔍 Key Concepts

• Duplexer function in marine radar (separating transmit and receive paths) • Roles of TR (transmit-receive) and ATR (anti-transmit-receive) protection devices • What the magnetron does compared with what the mixer/receiver does

💭 Think About

• Which component’s main job is to protect the receiver/mixer from the high power pulse coming from the magnetron, and which one protects the magnetron from energy coming back from the antenna? • Look at the wording: the device is between the magnetron and the mixer and its job is to prevent received (incoming) signals from going toward the magnetron—which direction is that, and which tube in the duplexer handles it? • Eliminate the options that are not specifically used as fast-acting gas discharge protection devices in a radar duplexer.

✅ Before You Answer

• Verify which tube in a duplexer is associated with transmit protection of the receiver (usually near the receiver/mixer side) versus receive protection of the transmitter (near the magnetron side). • Confirm that RF attenuators are used to reduce signal strength for measurement/calibration rather than to act as fast switching protection devices in the duplexer. • Check that a resonant cavity is part of the magnetron structure or tuning, not typically a separate protective tube between magnetron and mixer.