• In the broadcast AM receivers the total oscillator frequency is higher than the incoming signal frequency by intermediate frequency i.e.

  $f_0=f_s+I.F.$ …………………….. (1)

  OR

  I.F. =$( f_0-f_s)$ ------------- (2)

• If two frequency components $f_1$ and $f_2$ are mixed in a mixer then mixer output consists of following components. If ($ …