What we mean by channel Bandwidth

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moonnightingale

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Can somebody explain me
What we mean by channel Bandwidth
 

channel is a medium through which information is transmitted between transmitter and receiver. Channel bandwidth is the frequency range that constitutes the channel. Lets take AM transmission, with fc as a carrier frequency as an example. If the message bandwidth is m Hz, then channel bandwidth required to transmit AM is 2m Hz. We usually specify the center frequency and say a 'bandwidth of m Hz centered about a frequency fc Hz'.
 

In practically bandwidth means .it is the way of data through the wire ?
for example ,the lowest frequency is 100Khz and the high frequency is 200khz then the bandwidth means
200-100=100khz

What is Bandwidth?
 

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