1.4 A four-stage amplifier has stages with the following specifications: Stage 1: power gain = 10, noise figure = 3dB  Stage 2: power gain = 15, noise figure = 6dB  Stage 3: power gain = 20, noise figure = 8dB  Stage 4: power gain = 25, noise figure = 10dB  1.4.1 Determine the amplifier’s gain in decibels.  Solution:  1.4.2 Determine the amplifier’s noise figure.

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1.4 A four-stage amplifier has stages with the following specifications:
Stage 1: power gain = 10, noise figure = 3dB 
Stage 2: power gain = 15, noise figure = 6dB 
Stage 3: power gain = 20, noise figure = 8dB 
Stage 4: power gain = 25, noise figure = 10dB 


1.4.1 Determine the amplifier’s gain in decibels. 
Solution: 
1.4.2 Determine the amplifier’s noise figure. 

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