2 files changed, 40 insertions, 0 deletions
diff --git a/1184/CH4/EX4.1/Ex4_1.sce b/1184/CH4/EX4.1/Ex4_1.sce
new file mode 100755
index 000000000..22280aa84
--- /dev/null
+++ b/1184/CH4/EX4.1/Ex4_1.sce
@@ -0,0 +1,20 @@
+//Example 4-1, Page No - 129
+
+clear
+clc
+
+Vcc =48
+I = 3.5
+effi_percent=70
+modulation_percent= 67 
+m = modulation_percent/100
+
+Pi = Vcc*I
+Pc=Pi
+Pm = Pi/2
+Pout = (effi_percent*Pi)/100
+Ps = Pc*((m^2)/4)
+max_swing = 2*Vcc 
+
+printf('The input power is %.1f watt \n AF power required for the 100 percent modulation is %.1f watt \n The carrier output power is %.1f watt\n', Pi,Pm,Pout) 
+printf('The power in one sideband %.2f watt \n Maximum swing = %.1f volt\n Minimum swing =0.0 volt',Ps,max_swing)
diff --git a/1184/CH4/EX4.2/Ex4_2.sce b/1184/CH4/EX4.2/Ex4_2.sce
new file mode 100755
index 000000000..030561258
--- /dev/null
+++ b/1184/CH4/EX4.2/Ex4_2.sce
@@ -0,0 +1,20 @@
+//Example 4-2,Page NO - 145
+
+clear
+clc
+
+fc =4.2*10^6
+voice_f_l = 300
+voice_f_u = 3400
+
+fll_usb = fc + voice_f_l
+ful_usb = fc + voice_f_u
+
+fll_lsb = fc - voice_f_l
+ful_lsb = fc - voice_f_u
+
+flsb = (fll_lsb + ful_lsb)/2
+
+printf('The range for USB is %.1f Hz to %.1f Hz',fll_usb,ful_usb)
+printf('\n The range for LSB is %.1f Hz to %.1f Hz',fll_lsb,ful_lsb)
+printf('\n The approximate center frequency of the filter \n to select the lower sideband is %.1f Hz',flsb)