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CBSE Class 12-science Answered

What is bandwidth?(communication and modulation)
Asked by sudipt.kumar | 09 Dec, 2011, 12:00: AM
Expert Answer
Bandwidth is the difference between the upper and lower frequencies in a contiguous set of frequencies. It is typically measured in hertz, and may sometimes refer to passband bandwidth, sometimes to baseband bandwidth, depending on context.
A key characteristic of bandwidth is that a band of a given width can carry the same amount of information, regardless of where that band is located in the frequency spectrum (assuming equivalent noise level). For example, a 5 kHz band can carry a telephone conversation whether that band is at baseband (as in your POTS telephone line) or modulated to some higher (passband) frequency.
Answered by | 09 Dec, 2011, 04:16: PM
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