Chapter 4(1)- Modulation - MODULATION 1 What is modulation Modulation is the process of putting information onto a high frequency carrier for

Chapter 4(1)- Modulation - MODULATION 1 What is modulation...

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MODULATION
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Modulation is the process of putting information onto a high frequency carrier for transmission ( frequency translation). 1.What is modulation?
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1. Frequency division multiplexing (To support multiple transmissions via a single channel) To avoid interference 2.What are the reasons for modulation?
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f M ( f ) 0 f 1 f 2 Multiplexed signal +
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2. Practicality of Antennas Transmitting very low frequencies require antennas with miles in wavelength
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