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Faiq

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Q1. Why are higher frequencies assigned a higher bandwidth?

Reasons for asking the question: My book quote "FM came late than AM waves and had to use higher frequencies than AM... The greater range of frequencies available means that each station has a greater bandwidth..." If the equation is Bandwidth * Number of stations = Frequency Range, then it doesn't matter if the frequencies are of higher or lower order, for a given number of stations they both have the same bandwidth.

Q2. Why do FM waves have an infinite number of frequencies?

Reasons for asking the question: My book quotes " The frequency spectrum of a carrier is much more complex. In particular, there are many frequencies associated with an FM wave." Many more sites state that FM waves a theoretical limit of infinite frequencies.

Q3. Why do FM waves are given a higher bandwidth than AM waves?

Reasons for asking the question: My book quotes "In particular, there are many frequencies associated with an FM wave. This means that FM waves need a greater bandwidth for each station." I find a little flaw with this argument. If I were to use an AM wave with a signal having a high frequency, the AM wave will also be having a high bandwidth. Then why associate high bandwidths with FM?

Reasons for asking the question: My book quote "FM came late than AM waves and had to use higher frequencies than AM... The greater range of frequencies available means that each station has a greater bandwidth..." If the equation is Bandwidth * Number of stations = Frequency Range, then it doesn't matter if the frequencies are of higher or lower order, for a given number of stations they both have the same bandwidth.

Q2. Why do FM waves have an infinite number of frequencies?

Reasons for asking the question: My book quotes " The frequency spectrum of a carrier is much more complex. In particular, there are many frequencies associated with an FM wave." Many more sites state that FM waves a theoretical limit of infinite frequencies.

Q3. Why do FM waves are given a higher bandwidth than AM waves?

Reasons for asking the question: My book quotes "In particular, there are many frequencies associated with an FM wave. This means that FM waves need a greater bandwidth for each station." I find a little flaw with this argument. If I were to use an AM wave with a signal having a high frequency, the AM wave will also be having a high bandwidth. Then why associate high bandwidths with FM?

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