What effect would insufficient radio-frequenc...

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Question 1 of 20zEJVwlzGP02OwQF8YxPn

What effect would insufficient radio-frequency excitation have on Class C modulated amplifier output?

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zEJVwlzGP02OwQF8YxPn

What effect would insufficient radio-frequency excitation have on Class C modulated amplifier output?

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🔍 Key Concepts

• Operation of a Class C amplifier and how it handles RF excitation and carrier. • Meaning of carrier shift in a modulated RF signal (what does "negative" vs "positive" carrier shift physically represent?). • Relationship between drive level (RF excitation) and the resulting amplitude of the carrier during modulation.

💭 Think About

• Think about what happens to the carrier level in a Class C amplifier when there is not enough RF excitation: does the carrier tend to drop below normal, rise above normal, or vary both ways during modulation? • In amplitude modulation, if the amplifier is under‑driven, how does that affect the symmetry of the modulation envelope around the unmodulated carrier level? • Does insufficient RF drive usually make the carrier stronger, weaker, or alternately stronger and weaker compared to its normal value?

✅ Before You Answer

• Be clear on the definition: a negative carrier shift means carrier level decreases from its unmodulated reference when modulation is applied; a positive carrier shift means it increases. • Recall that a Class C modulated amplifier is normally adjusted so the carrier does not shift when properly excited; what happens if you reduce that excitation below the design value? • Eliminate any choice that would require the carrier to both increase and decrease in a systematic way only due to insufficient excitation, unless you can clearly justify that behavior.

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Question 1 of 20zEJVwlzGP02OwQF8YxPn

What effect would insufficient radio-frequency excitation have on Class C modulated amplifier output?

Back

Question 1 of 20

zEJVwlzGP02OwQF8YxPn

What effect would insufficient radio-frequency excitation have on Class C modulated amplifier output?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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