6 files changed, 103 insertions, 0 deletions
diff --git a/3543/CH7/EX7.42/EX7_42.png b/3543/CH7/EX7.42/EX7_42.png
new file mode 100644
index 000000000..0227d4675
--- /dev/null
+++ b/3543/CH7/EX7.42/EX7_42.png
diff --git a/3543/CH7/EX7.42/EX7_42.sce b/3543/CH7/EX7.42/EX7_42.sce
new file mode 100644
index 000000000..f3d071dd2
--- /dev/null
+++ b/3543/CH7/EX7.42/EX7_42.sce
@@ -0,0 +1,35 @@
+// Example 7.42
+// Calculation of a)excess loss,b)insertion loss,c)crosstalk and d)split ratio for the device.
+// Page no 496
+
+clc;
+clear;
+close;
+
+//Given data
+P1=60*10^-6;                 // Power launched in port 1
+P2=0.004*10^-6;              // Power launched in port 2
+P3=26*10^-6;                // Power launched in port 3 
+P4=27.5*10^-6;              // Power launched in port 4
+
+// a)Excess loss
+E=10*log10(P1/(P3+P4)); 
+
+//b)Insertion loss
+I1=10*log10(P1/P3);
+I2=10*log10(P1/P4);
+
+//c)Crosstalk
+C=10*log10(P2/P1);
+
+//d)Split ratio
+S=(P3/(P3+P4))*100;
+
+
+//Displaying results in the command window            
+printf("\n Excess loss(in dB) = %0.1f  ",E);
+printf("\n Insertion loss(in dB) = %0.2f  ",I1);
+printf("\n Insertion loss (in dB)= %0.2f  ",I2);
+printf("\n Crosstalk (in dB)= %0.1f  ",C);
+printf("\n Split ratio(in percentage) = %0.1f  ",S);
+
diff --git a/3543/CH7/EX7.43/EX7_43.png b/3543/CH7/EX7.43/EX7_43.png
new file mode 100644
index 000000000..1b84865d8
--- /dev/null
+++ b/3543/CH7/EX7.43/EX7_43.png
diff --git a/3543/CH7/EX7.43/EX7_43.sce b/3543/CH7/EX7.43/EX7_43.sce
new file mode 100644
index 000000000..ef2770a1f
--- /dev/null
+++ b/3543/CH7/EX7.43/EX7_43.sce
@@ -0,0 +1,34 @@
+// Example 7.42
+// Calculation of a)excess loss,b)insertion loss,c)crosstalk and d)split ratio for the device.
+// Page no 497
+
+clc;
+clear;
+close;
+
+//Given data
+P1=100*10^-6;                 // Power launched in port 1
+P2=0.005*10^-6;              // Power launched in port 2
+P3=30*10^-6;                // Power launched in port 3 
+P4=35*10^-6;              // Power launched in port 4
+
+// a)Excess loss
+E=10*log10(P1/(P3+P4)); 
+// b)Insertion loss
+I1=10*log10(P1/P3);
+I2=10*log10(P1/P4);
+
+//c)Crosstalk
+C=10*log10(P2/P1);
+
+//d)Split ratio
+S=(P3/(P3+P4))*100;
+
+
+//Displaying results in the command window            
+printf("\n Excess loss(in dB) = %0.2f  ",E);
+printf("\n Insertion loss(in dB) = %0.3f  ",I1);
+printf("\n Insertion loss (in dB)= %0.2f  ",I2);
+printf("\n Crosstalk (in dB)= %0.1f  ",C);
+printf("\n Split ratio(in percentage) = %0.2f  ",S);
+// The cross talk answer computation is wrong in the book
diff --git a/3543/CH7/EX7.44/EX7_44.png b/3543/CH7/EX7.44/EX7_44.png
new file mode 100644
index 000000000..96356b46f
--- /dev/null
+++ b/3543/CH7/EX7.44/EX7_44.png
diff --git a/3543/CH7/EX7.44/EX7_44.sce b/3543/CH7/EX7.44/EX7_44.sce
new file mode 100644
index 000000000..99f0108c3
--- /dev/null
+++ b/3543/CH7/EX7.44/EX7_44.sce
@@ -0,0 +1,34 @@
+// Example 7.42
+// Calculation of a)excess loss,b)insertion loss,c)crosstalk and d)split ratio for the device.
+// Page no 498
+
+clc;
+clear;
+close;
+
+//Given data
+P1=116.3*10^-6;                 // Power launched in port 1
+P2=0.082*10^-6;              // Power launched in port 2
+P3=47*10^-6;                // Power launched in port 3 
+P4=52*10^-6;              // Power launched in port 4
+
+// a)Excess loss
+E=10*log10(P1/(P3+P4)); 
+//b)Insertion loss
+I1=10*log10(P1/P3);
+I2=10*log10(P1/P4);
+
+//c)Crosstalk
+C=10*log10(P2/P1);
+
+//d)Split ratio
+S=(P3/(P3+P4))*100;
+
+
+//Displaying results in the command window            
+printf("\n Excess loss(in dB) = %0.1f  ",E);
+printf("\n Insertion loss(in dB) = %0.3f  ",I1);
+printf("\n Insertion loss (in dB)= %0.2f  ",I2);
+printf("\n Crosstalk (in dB)= %0.2f  ",C);
+printf("\n Split ratio(in percentage) = %0.2f  ",S);
+// The answers vary due to round off error