Problem 1. A Conventional AM signal is given by SAM(t) = 4(1+ucos (1,000nt)) cos(20, 000nt) a) What value would u need to be for % of the power to be in the μ sidebands? b) What is the bandwidth of the modulated signal

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**Problem 1.** A Conventional AM (Amplitude Modulated) signal is given by

\[ S_{AM}(t) = 4(1 + \mu \cos(1,000\pi t)) \cos(20,000\pi t) \]

a) What value would \(\mu\) need to be for \(\frac{1}{4}\) of the power to be in the sidebands?

b) What is the bandwidth of the modulated signal?

**Explanation:**

In this problem, we are dealing with a standard AM modulation where the carrier signal is multiplied by a message signal. The expression contains carrier frequency (\(20,000\pi\)), and the modulation index (\(\mu\)) influences how much of the transmitted power is in the sidebands compared to the carrier. The questions require calculating:

a) The modulation index \(\mu\) such that one quarter of the power is in the sidebands.

b) Determining the bandwidth, which for an AM signal is typically twice the message signal frequency.

There are no graphs or diagrams in the image.
Transcribed Image Text:**Problem 1.** A Conventional AM (Amplitude Modulated) signal is given by \[ S_{AM}(t) = 4(1 + \mu \cos(1,000\pi t)) \cos(20,000\pi t) \] a) What value would \(\mu\) need to be for \(\frac{1}{4}\) of the power to be in the sidebands? b) What is the bandwidth of the modulated signal? **Explanation:** In this problem, we are dealing with a standard AM modulation where the carrier signal is multiplied by a message signal. The expression contains carrier frequency (\(20,000\pi\)), and the modulation index (\(\mu\)) influences how much of the transmitted power is in the sidebands compared to the carrier. The questions require calculating: a) The modulation index \(\mu\) such that one quarter of the power is in the sidebands. b) Determining the bandwidth, which for an AM signal is typically twice the message signal frequency. There are no graphs or diagrams in the image.
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