Carson's Rule - polly 4th sem - Analog Comm.
===Carson's rule=== {{Main|Carson bandwidth rule}} A [[rule of thumb]], ''Carson's rule'' states that nearly all (~98 percent) of the power of a frequency-modulated signal lies within a [[bandwidth (signal processing)|bandwidth]]BW\,of: :\ B_T = 2(\Delta f +f_m)\,where\Delta f\,, as defined above, is the peak deviation of the instantaneous frequencyf(t)\,from the center carrier frequencyf_c\,.
