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+clc;
+//page no 7-17
+//Example 7.1
+//Given
+fc=15;//in MHz
+fd=10;//in kHz
+fo=45;//in MHz
+//At point 1 in Fig 7.16
+fc1=4*fc;
+fd1=4*fd;
+fmax1=fc1+(fd1*10^(-3));
+fmin1=fc1-(fd1*10^(-3));
+disp(+'MHz',fc1,'Carrier frequency at point 1 is');
+disp(+'kHz',fd1,'frequency deviation at point 1 is');
+disp(+'MHz',fmax1,'fmax=');
+disp(+'MHz',fmin1,'fmin=');
+//At point 2, mixer gives difference frequency with fo=45MHz
+fc2=fc1-fo;
+fmax2=fmax1-fo;
+fmin2=fmin1-fo;
+fd2=(fc-fmin2)*10^3;
+disp(+'MHz',fc2,'Carrier frequency at point 2 is');
+disp(+'MHz',fmax2,'fmax=');
+disp(+'MHz',fmin2,'fmin=');
+disp(+'kHz',fd2,'Frequency deviation at point 2 is');