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+
+//Variable Declaration
+
+f=4.2 //modualating frequency(MHz)
+m=2.571 //Modulation index
+QIF1=4.2 //Quality Impairment factor(a)
+QIF2=4.5 //Quality Impairment factor(b)
+
+//Calculation
+Dv=2*m*f //Peak to peak deviation(MHz)
+PR1=12.5-20*log10(Dv/12)-QIF1+1.1*QIF1**2 //Protection ratio for case(a)
+PR2=12.5-20*log10(Dv/12)-QIF2+1.1*QIF2**2 //Protection ratio for case(b)
+
+//Results
+printf("The protection ratio for quality impairment factor of 4.2 is %.1f dB",PR1)
+printf("The protection ratio for quality impairment factor of 4.5 is %.1f dB",PR2)