initial commit / add all books

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+clc;

+//page no 167

+//prob no. 5.12

+//All frequencies in Hz

+B=200*10^3; //The bandwidth allocated by FCC (in Hz)

+fl=88*10^6;fh=108*10^6;  //FM broadcast band low and high end freq

+Q=fl/B;

+disp(Q,'(a)  At the low end of FM band ,Q required is');

+Q=fh/B;

+disp(Q,'    At the high end of FM band ,Q required is');

+fIF=10.7*10^6;// IF frequwncy (in Hz)

+Q=fIF/B;

+disp(Q,'(b)  At the IF frequency ,Q required is ');

+disp('(c)   Signal freq = 88 to 108 MHz')

+disp('     LO freq = 98.7 to 118.7 MHz')

+disp('     Image freq = 109.4 to 129.4MHz')

+disp('(d)   Signal freq = 88 to 108 MHz')

+disp('     LO freq = 77.3 to 97.3 MHz')

+disp('     Image freq = 66.6 to 86.6MHz')