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WalesElectronicsQuick questions

Component 1: Communications Systems

Quick questions on Communication principles and modulation: AM, FM, bandwidth and noise - WJEC A-Level Electronics

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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An audio signal up to 3.4kHz3.4\,\text{kHz} amplitude-modulates a carrier. Find the bandwidth of the transmission. [2 marks]
What is q2?
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State why frequency modulation is less affected by noise than amplitude modulation. [2 marks]

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