Why do we need carrier waves of very high frequency in the modulation of signals ?
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Answer :- because the signal needs to keep changing in order to be radiated from antenna. This can be solved by using a carrier wave. A high frequency carrier would significantly reduce the antenna length.
Hope it helps you.
Answer :- because the signal needs to keep changing in order to be radiated from antenna. This can be solved by using a carrier wave. A high frequency carrier would significantly reduce the antenna length.
Hope it helps you.
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