7- For a DSBFC AM modulator with Carrier frequency fc = 100 kHz and maximum modulating signal frequency fm (max) = 5 kHz and fm (max) = 3 kHz, determine:
a. Draw the output frequency spectrum. Frequency limits of upper and lower sidebands. Bandwidth.
b. Draw the output frequency spectrum. Upper and lower sidebands produced by modulating signal of single-frequency 3 kHz.
