4.4-9 A vestigial filter H;(f) shown in the transmitter of Fig. 4.19 has a transfer function as shown in Fig. P4.4-9. The carrier frequency is fe = 10 kHz, and the baseband signal bandwidth is 4 kHz. Find the corresponding transfer function of the equalizer filter Ho(f) shown in the receiver of Fig. 4.19. Hint: Use Eq. (4.24). Figure P4.4-9 H;(0)| 2- 1 9 10 11 12 14 f kHz- 1 Ho(f)= f≤B (4.24) Hif+fe)+Hif-fc)