Which method generates an SSB signal using digital signal processing?
The correct answer is D: Signals are combined in quadrature phase relationship. Which method generates an SSB signal using digital signal processing is that signals are combined in quadrature phase relationship. Quadrature combining creates SSB. For amateur radio operators, this is important for DSP. Understanding this helps when working with SDRs.
Exam Tip
SSB generation using DSP = signals combined in quadrature phase relationship. Think 'S'SB 'D'SP = 'Q'uadrature combining. Quadrature combining creates SSB. Not mixing products subtraction, not frequency synthesizer, not crystal emulation - just quadrature combining.
Memory Aid
"SSB generation using DSP = signals combined in quadrature phase relationship. Think 'S'SB 'D'SP = 'Q'uadrature. Quadrature combining creates SSB. Important for DSP."
Real-World Application
Generating an SSB signal using digital signal processing: Signals are combined in quadrature phase relationship. The I and Q signals are combined with 90° phase relationship to create SSB. This is the method - quadrature combining.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Mixing products converted to voltages and subtracted isn't SSB generation - SSB uses quadrature combining. Mixing products subtraction isn't SSB.
Option B: Incorrect. Frequency synthesizer removing unwanted sidebands isn't SSB generation - SSB uses quadrature combining. Frequency synthesizer isn't SSB.
Option C: Incorrect. Varying quartz crystal characteristics emulated digitally isn't SSB generation - SSB uses quadrature combining. Crystal emulation isn't SSB.
题目解析
The correct answer is D: Signals are combined in quadrature phase relationship. Which method generates an SSB signal using digital signal processing is that signals are combined in quadrature phase relationship. Quadrature combining creates SSB. For amateur radio operators, this is important for DSP. Understanding this helps when working with SDRs.
考试技巧
SSB generation using DSP = signals combined in quadrature phase relationship. Think 'S'SB 'D'SP = 'Q'uadrature combining. Quadrature combining creates SSB. Not mixing products subtraction, not frequency synthesizer, not crystal emulation - just quadrature combining.
记忆口诀
SSB generation using DSP = signals combined in quadrature phase relationship. Think 'S'SB 'D'SP = 'Q'uadrature. Quadrature combining creates SSB. Important for DSP.
实际应用示例
Generating an SSB signal using digital signal processing: Signals are combined in quadrature phase relationship. The I and Q signals are combined with 90° phase relationship to create SSB. This is the method - quadrature combining.
错误选项分析
Option A: Incorrect. Mixing products converted to voltages and subtracted isn't SSB generation - SSB uses quadrature combining. Mixing products subtraction isn't SSB. Option B: Incorrect. Frequency synthesizer removing unwanted sidebands isn't SSB generation - SSB uses quadrature combining. Frequency synthesizer isn't SSB. Option C: Incorrect. Varying quartz crystal characteristics emulated digitally isn't SSB generation - SSB uses quadrature combining. Crystal emulation isn't SSB.
知识点
Method, Generate SSB signal, Digital signal processing, Signals combined, Quadrature phase relationship
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.