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+clc
+//Chapter7
+//Example7.8
+//Given
+g01=30// gain of 1st stage
+g02=20//gain of 2nd stage
+g03=40//gain of 3rd stage
+F2=6// Noise factor of stage 2
+F3=12// Noise factor of stage 3
+Te1=4// Eq noise temp of stage 1
+T=290// Room 
+G01=round(10^(g01/10))
+G02=round(10^(g02/10))
+G03=round(10^(g03/10))
+F_2=round(10^(F2/10))
+F_3=round(10^(F3/10))
+Te2=round((F_2-1))*T
+Te3=round((F_3-1))*T
+Te=Te1+(Te2/G01)+(Te3/(G01*G02))// Eq overall noise temp
+mprintf('The equivalent noise temp is: %f K',Te)
+
+
+
+
+