PPT - Superheterodyne Receiver Electronics and Communication Engineering (ECE) Notes | EduRev

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Electronics and Communication Engineering (ECE) : PPT - Superheterodyne Receiver Electronics and Communication Engineering (ECE) Notes | EduRev

 Page 1


SUPER HETERODYNE RECEIVER
Page 2


SUPER HETERODYNE RECEIVER
? Intercept the electromagnetic waves in the receiving antenna to 
produce the desired RF modulated carrier.
? Select the desired signal and reject the unwanted signal.
? Amplify the RF signal.
? Detect the RF carrier to get back the original modulation frequency 
voltage.
? Amplify the modulation frequency voltage
Page 3


SUPER HETERODYNE RECEIVER
? Intercept the electromagnetic waves in the receiving antenna to 
produce the desired RF modulated carrier.
? Select the desired signal and reject the unwanted signal.
? Amplify the RF signal.
? Detect the RF carrier to get back the original modulation frequency 
voltage.
? Amplify the modulation frequency voltage
? Simplicity of operation
? Good fidelity
? Good selectivity
? Average sensitivity
? Adaptability to different types of aerials
Page 4


SUPER HETERODYNE RECEIVER
? Intercept the electromagnetic waves in the receiving antenna to 
produce the desired RF modulated carrier.
? Select the desired signal and reject the unwanted signal.
? Amplify the RF signal.
? Detect the RF carrier to get back the original modulation frequency 
voltage.
? Amplify the modulation frequency voltage
? Simplicity of operation
? Good fidelity
? Good selectivity
? Average sensitivity
? Adaptability to different types of aerials
Page 5


SUPER HETERODYNE RECEIVER
? Intercept the electromagnetic waves in the receiving antenna to 
produce the desired RF modulated carrier.
? Select the desired signal and reject the unwanted signal.
? Amplify the RF signal.
? Detect the RF carrier to get back the original modulation frequency 
voltage.
? Amplify the modulation frequency voltage
? Simplicity of operation
? Good fidelity
? Good selectivity
? Average sensitivity
? Adaptability to different types of aerials
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