bandwidth am

Question

Bandwidth of AM signal equals:

RankGuru · Accepted Answer

In a standard AM signal, the frequency spectrum consists of the carrier frequency $f_c$ and two sidebands:
- **Upper Sideband (USB)**: $f_c + f_m$
- **Lower Sideband (LSB)**: $f_c - f_m$
where $f_m$ is the frequency of the modulating signal. The bandwidth ($BW$) is the difference between the highest and lowest frequencies:
$BW = (f_c + f_m) - (f_c - f_m) = 2f_m$.
Thus, the bandwidth of an AM signal is twice the highest frequency present in the modulating signal.

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bandwidth am

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