Question

Determine the percent modulation of an FM signal which is being broadcast in the 88-­108 MHz band, having a carrier swing of 110 kHz.

Answer 1

C_s = 2.Δf

Δf = \(\frac{C_s}{2}=\frac{110}{2}\) = 55 kHz

m_f = \(\frac{\Delta actual}{\Delta maximum}\) x 100

= \(\frac{55}{75}\) x 100

= 73.3%

Comments

How did u get 75 khz as delta maximum
Need detail answer