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V i e w A l l |
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| Innovation/Experiment |
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Frequancy Modulation( Information and Communication Technology) |
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| Class |
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XI |
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| Subject |
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Science |
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| Learning Objective |
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Walky Talky using the Concept of frequncy modulation |
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| Realisation |
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A process by which the frequency of a carrier (sinusoidal wave) is varied in accordance with a modulating wave (data or analog message). |
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| Teacher's Name |
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Mahendra Vishwakarma |
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| Teacher's Designation |
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PGT( CS ) |
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| Details |
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This project participated in National level Science Exhibition 2009-10frequency of carrier signal follows changes in voltage level (amplitude) of modulating signal
The bandwidth of an FM signal is given by:
BFM = 2(Äf +B)
Äf is the frequency deviation (how much the carrier deviates from the carrier frequency)
B is the bandwidth of the modulating signal (message)
So, the bandwidth required of an FM signal is
at least twice the bandwidth of the message.
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