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Reasons for modulation
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Reasons for modulation
Permits frequency multiplexing
- Baseband signals occupying the same f ranges can be transmitted simultaneously
- Achieved by making the modulated waveform to occupy different f ranges
- Baseband signals occupying the same f ranges can be transmitted simultaneously
Practicability of antennas
- Many information signals are in low frequencies = large wavelength
- Large wavelength require large antennas
- impractical
- Large wavelength require large antennas
- thus, modulate to high frequency (radio f) signals
- ease transmission
- Many information signals are in low frequencies = large wavelength
Narrowbanding
- Difficult to design antenna for wideband signal
- therefore, modulation narrowband the info signal
- Difficult to design antenna for wideband signal
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- Undergraduate UEET2513 Analogue Communications Mind Map on Reasons for modulation, created by Lloyd Teoh on 28/07/2015.
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- Lloyd Teoh
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