Which option describes bandwidth as used in wireless communications?

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Multiple Choice

Which option describes bandwidth as used in wireless communications?

Bandwidth in wireless communications refers to the width of the frequency band allocated for transmitting a signal—the range of frequencies that the signal occupies. This spectral width, measured in hertz, determines how much information can be carried, since more frequencies available can support more signal variations and higher data rates with the right modulation. The capacity of the channel describes the maximum achievable data rate under given conditions (and depends on bandwidth and signal-to-noise ratio), but it is not itself the bandwidth. The rate at which signals travel through a medium is the propagation speed, not the spectral width. So the description that matches bandwidth is the range of frequencies within a given band used for transmitting a signal.

Bandwidth in wireless communications refers to the width of the frequency band allocated for transmitting a signal—the range of frequencies that the signal occupies. This spectral width, measured in hertz, determines how much information can be carried, since more frequencies available can support more signal variations and higher data rates with the right modulation. The capacity of the channel describes the maximum achievable data rate under given conditions (and depends on bandwidth and signal-to-noise ratio), but it is not itself the bandwidth. The rate at which signals travel through a medium is the propagation speed, not the spectral width. So the description that matches bandwidth is the range of frequencies within a given band used for transmitting a signal.

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