If a class B linear final R-F amplifier were...

If a class B linear final R-F amplifier were...

Question 1 of 270704zHsMbobBC4ID6MIvcCt

If a class B linear final R-F amplifier were in saturation and no modulation what would happen when modulated?

Question 1 of 27070

Q

If a class B linear final R-F amplifier were in saturation and no modulation what would happen when modulated?

🔍 Key Concepts

• Class B linear RF amplifier operating point (conduction angle and bias) • Meaning of saturation vs normal linear region in an RF power amplifier • How modulation (especially AM) affects carrier amplitude and what carrier shift (positive vs negative) means

💭 Think About

• Think about where a Class B linear amplifier is normally biased on the tube/transistor characteristic curve. What does it mean for it to be in saturation instead? • When you apply modulation to a carrier in a stage that is already saturated, can the output still follow the modulation linearly, or will part of the modulation be cut off or distorted? • In AM, how does over‑driving (saturating) the RF stage affect the average carrier level: does it tend to increase (positive shift) or decrease (negative shift) the apparent carrier?

✅ Before You Answer

• Review that a Class B linear RF amplifier is normally used so that it stays in its linear region for all modulation peaks, not in saturation • Confirm what negative carrier shift means: carrier level dropping when modulation is applied instead of remaining constant • Check which options describe behavior that is inconsistent with saturation of a linear RF amplifier and can therefore be eliminated.