What is an LNA?

What is an LNA?

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Question 1 of 20ZqsNiz2pDDcknSBUytiO

What is an LNA?

Question 1 of 20

ZqsNiz2pDDcknSBUytiO

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What is an LNA?

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🔍 Key Concepts

• Electronics used in marine radar and communications receivers • How very weak radio or radar signals are strengthened at the front end of a receiver • Difference between an antenna (sensor) and an amplifier (active device)

💭 Think About

• Which option describes a device that makes a very weak incoming signal stronger without adding much extra interference? • In radio and radar systems, is the first stage after the antenna usually focused on computing, receiving, or amplifying? • Which of these terms have you actually seen on receiver or radar block diagrams or specifications?

✅ Before You Answer

• Match the word "noise" with how electronics engineers use it (unwanted signal, not sound you can hear). • Ask yourself which choices are real, commonly used technical terms in RF (radio frequency) electronics. • Remember that an antenna receives signals, while an amplifier increases signal strength.

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