Electronic Communication Systems 2nd Edition by Roy Blake

تمرين 6

Sketch the baseband spectrum for each of the following stereo FM signals. A frequency scale is required, but an amplitude scale is not.
(a) A 1 kHz sine wave, of equal amplitude and phase on the left and right channels
(b) as in part (a), except that the left and right channels are 180° out of phase
(c) a 1 kHz sine wave on the left channel, no signal on the right channel