(a)[2]
Describe what frequency modulation means.
(b(i))[1]
Determine the amplitude of the frequency-modulated carrier wave.
(b(ii))[1]
Determine the minimum frequency of the frequency-modulated carrier wave.
(b(iii))[1]
Determine the maximum frequency of the frequency-modulated carrier wave.
(b(iv))[1]
Determine how many times per second the frequency changes from its minimum value to its maximum value and then back to the minimum value.
(b)
The sinusoidal carrier wave has a frequency of $750\,\text{kHz}$ and an amplitude of $5.0\,\text{V}$. A sinusoidal signal with frequency $7.5\,\text{kHz}$ and amplitude $1.5\,\text{V}$ frequency modulates the carrier wave. The frequency deviation of the carrier wave is $20\,\text{kHz V}^{-1}$. Determine, for the frequency-modulated carrier wave,