Modulation

Electromagnetic waves provide a convenient means of transmitting information, but how do we insert information onto an electromagnetic wave?  We could switch the wave off and on (like morse code)…  A better way is to modulate either the amplitude or frequency the wave.  The modulations are detected and decoded by the receiver.  The slides outline both AM and FM modulation (and a research task based on part of the syllabus).

Powerpoint slides

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