The AFC system is used to:

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The AFC system is used to:

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🔍 Key Concepts

• Automatic Frequency Control (AFC) function in marine radar receivers • Difference between magnetron (transmitter) and klystron/local oscillator (receiver) in a radar set • What part of the radar chain can you actually adjust versus what simply arrives from outside

💭 Think About

• In a radar, which component produces the transmitted pulse, and which produces the local reference frequency for the receiver to stay tuned? • Can the radar set actively change the frequency of echoes returning from a target, or only adjust its own internal oscillators? • Which choice refers to gain (amplification) rather than frequency, and how does that relate to the name Automatic Frequency Control?

✅ Before You Answer

• Make sure the function you pick actually involves frequency, not gain or amplification. • Ask: does this system act on the transmitter or on the receiver’s local oscillator to keep them matched? • Eliminate any option that suggests controlling the incoming echoes themselves, since the radar cannot change what has already left the antenna and bounced back.

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Question 1 of 20

The AFC system is used to:

Control the frequency of the magnetron.

Control the frequency of the klystron .

Control the receiver gain.

Control the frequency of the incoming pulses.

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Question 1 / 20CfqwA8UMq368chPFhvVs

Question 1 of 20CfqwA8UMq368chPFhvVs

The AFC system is used to:

Back

Question 1 of 20

CfqwA8UMq368chPFhvVs

The AFC system is used to:

No comments yet

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If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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