The bandwidth can be referred to as the range of the component frequencies that is contained in the signal. It can be said that the bandwidth is directly proportional to the signal . Larger the bandwidth is larger the frequencies it can contain.
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The bandwidth of a signal is defined as the difference between the upper and lower frequencies of a signal generated. As seen from the above representation, Bandwidth (B) of the signal is equal to the difference between the higher or upper-frequency (fH) and the lower frequency (fL) .
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