The point at which the output noise power of the fundamental signal shifts away from the ideal output power by 1-dB is called 1-dB expansion point.(a) True(b) FalseThe question was asked by my school teacher while I was bunking the class.This key question is from ADC Tradeoffs in portion Technology Tradeoffs in Software Defined Radio of Cognitive Radio

The point at which the output noise power of the fundamental signal sh

1.	The point at which the output noise power of the fundamental signal shifts away from the ideal output power by 1-dB is called 1-dB expansion point.(a) True(b) FalseThe question was asked by my school teacher while I was bunking the class.This key question is from ADC Tradeoffs in portion Technology Tradeoffs in Software Defined Radio of Cognitive Radio
Answer» The correct ANSWER is (b) False To elaborate: The increase in the third-order intermodulation product eventually results in the INTERSECTION of the fundamental signal with the power of third-order intermodulation product. This is referred as IP3. The output power of the fundamental signal SATURATES before IP3.The point at which the output noise power of the fundamental signal SHIFTS away from the ideal output power by 1-dB is called 1-dB compression point.

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