railway RRB JE (CBT I + CBT II) Mock Test 2024 Communication Systems Basics of Communication System Modulation Theorem
A message m(t) bandlimited to the frequency fm has a power of Pm. The power of the output signal in the figure is
1
\(\frac{{\left( {Pm\cos \theta } \right)}}{2}\)
2
\(\frac{{Pm\,{{\sin }^2}\theta }}{2}\)
3
\(\frac{{Pm}}{4}\)
4
\(\frac{{Pm\,{{\cos }^2}\theta }}{4}\)