Which of the following is the likely result of using a Class C amplifier to amplify a single-sideband phone signal?
The correct answer is D: Signal distortion and excessive bandwidth. Which of the following is the likely result of using a Class C amplifier to amplify a single-sideband phone signal is signal distortion and excessive bandwidth. Class C is nonlinear and distorts SSB signals. For amateur radio operators, this is important for amplifier selection. Understanding this helps when selecting amplifiers.
Exam Tip
Class C amplifier with SSB = signal distortion and excessive bandwidth. Think 'C'lass 'C' with 'S'SB = 'C'auses 'S'ignal 'D'istortion. Class C is nonlinear and distorts SSB signals. Not reduced IMD, not increased intelligibility, not reduced third-order IMD - just distortion and excessive bandwidth.
Memory Aid
"Class C amplifier with SSB = signal distortion and excessive bandwidth. Think 'C'lass 'C' = 'D'istortion. Class C is nonlinear and distorts SSB signals. Important for amplifier selection."
Real-World Application
Using a Class C amplifier to amplify a single-sideband phone signal: The likely result is signal distortion and excessive bandwidth. Class C amplifiers are nonlinear and don't preserve the SSB signal properly. This is the result - distortion and excessive bandwidth.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Reduced intermodulation products isn't the result - Class C causes distortion and excessive bandwidth. Reduced IMD isn't the result.
Option B: Incorrect. Increased overall intelligibility isn't the result - Class C causes distortion and excessive bandwidth. Increased intelligibility isn't the result.
Option C: Incorrect. Reduced third-order intermodulation isn't the result - Class C causes distortion and excessive bandwidth. Reduced third-order IMD isn't the result.
题目解析
The correct answer is D: Signal distortion and excessive bandwidth. Which of the following is the likely result of using a Class C amplifier to amplify a single-sideband phone signal is signal distortion and excessive bandwidth. Class C is nonlinear and distorts SSB signals. For amateur radio operators, this is important for amplifier selection. Understanding this helps when selecting amplifiers.
考试技巧
Class C amplifier with SSB = signal distortion and excessive bandwidth. Think 'C'lass 'C' with 'S'SB = 'C'auses 'S'ignal 'D'istortion. Class C is nonlinear and distorts SSB signals. Not reduced IMD, not increased intelligibility, not reduced third-order IMD - just distortion and excessive bandwidth.
记忆口诀
Class C amplifier with SSB = signal distortion and excessive bandwidth. Think 'C'lass 'C' = 'D'istortion. Class C is nonlinear and distorts SSB signals. Important for amplifier selection.
实际应用示例
Using a Class C amplifier to amplify a single-sideband phone signal: The likely result is signal distortion and excessive bandwidth. Class C amplifiers are nonlinear and don't preserve the SSB signal properly. This is the result - distortion and excessive bandwidth.
错误选项分析
Option A: Incorrect. Reduced intermodulation products isn't the result - Class C causes distortion and excessive bandwidth. Reduced IMD isn't the result. Option B: Incorrect. Increased overall intelligibility isn't the result - Class C causes distortion and excessive bandwidth. Increased intelligibility isn't the result. Option C: Incorrect. Reduced third-order intermodulation isn't the result - Class C causes distortion and excessive bandwidth. Reduced third-order IMD isn't the result.
知识点
Result, Class C amplifier, Amplify single-sideband phone signal, Signal distortion, Excessive bandwidth
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.