Why frequency bandwidth is important?

A critical parameter of any communications system is bandwidth, which characterizes its information-carrying capacity. Access to the Internet, for example, is much faster via a broadband than a dial-up connection. This is mainly because a broadband connection uses higher frequencies to convey digital data .

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Is the range of frequencies?

Frequency bands Frequency rangeWavelength rangeITU designationFull name30–300 kHz10–1 kmLow frequency300 kHz – 3 MHz1 km – 100 mMedium frequency3–30 MHz100–10 mHigh frequencyRadio frequency – Wikipedia en.wikipedia.org › wiki › Radio_frequency

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