What is one way to produce a single-sideband phone signal?
The correct answer is A: Use a balanced modulator followed by a filter. What is one way to produce a single-sideband phone signal is to use a balanced modulator followed by a filter. Balanced modulator creates DSB, filter removes one sideband. For amateur radio operators, this is important for SSB generation. Understanding this helps when generating SSB signals.
Exam Tip
Produce SSB phone signal = use balanced modulator followed by filter. Think 'S'SB = 'B'alanced 'M'odulator + 'F'ilter. Balanced modulator creates DSB, filter removes one sideband. Not reactance modulator, not loop modulator, not product detector - just balanced modulator followed by filter.
Memory Aid
"Produce SSB phone signal = use balanced modulator followed by filter. Think 'S'SB = 'B'alanced 'M'odulator + 'F'ilter. Balanced modulator creates DSB, filter removes one sideband. Important for SSB generation."
Real-World Application
Producing a single-sideband phone signal: One way is to use a balanced modulator followed by a filter. The balanced modulator creates a double-sideband signal, and the filter removes one sideband. This is the method - balanced modulator followed by filter.
Key Concepts
Why Other Options Are Wrong
Option B: Incorrect. Use reactance modulator followed by mixer isn't SSB - SSB uses balanced modulator followed by filter. Reactance modulator isn't SSB.
Option C: Incorrect. Use loop modulator followed by mixer isn't SSB - SSB uses balanced modulator followed by filter. Loop modulator isn't SSB.
Option D: Incorrect. Use product detector with DSB signal isn't SSB generation - SSB uses balanced modulator followed by filter. Product detector isn't generation.
题目解析
The correct answer is A: Use a balanced modulator followed by a filter. What is one way to produce a single-sideband phone signal is to use a balanced modulator followed by a filter. Balanced modulator creates DSB, filter removes one sideband. For amateur radio operators, this is important for SSB generation. Understanding this helps when generating SSB signals.
考试技巧
Produce SSB phone signal = use balanced modulator followed by filter. Think 'S'SB = 'B'alanced 'M'odulator + 'F'ilter. Balanced modulator creates DSB, filter removes one sideband. Not reactance modulator, not loop modulator, not product detector - just balanced modulator followed by filter.
记忆口诀
Produce SSB phone signal = use balanced modulator followed by filter. Think 'S'SB = 'B'alanced 'M'odulator + 'F'ilter. Balanced modulator creates DSB, filter removes one sideband. Important for SSB generation.
实际应用示例
Producing a single-sideband phone signal: One way is to use a balanced modulator followed by a filter. The balanced modulator creates a double-sideband signal, and the filter removes one sideband. This is the method - balanced modulator followed by filter.
错误选项分析
Option B: Incorrect. Use reactance modulator followed by mixer isn't SSB - SSB uses balanced modulator followed by filter. Reactance modulator isn't SSB. Option C: Incorrect. Use loop modulator followed by mixer isn't SSB - SSB uses balanced modulator followed by filter. Loop modulator isn't SSB. Option D: Incorrect. Use product detector with DSB signal isn't SSB generation - SSB uses balanced modulator followed by filter. Product detector isn't generation.
知识点
One way to produce, Single-sideband phone signal, Use balanced modulator, Followed by filter
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.