a. Assume that a channel occupies a bandwidth of 250 kHz. We need to multiplex six channels with guard bands of 400 Hz using FDM. Calculate the minimum bandwidth of the link to prevent interference....

Extracted text: a. Assume that a channel occupies a bandwidth of 250 kHz. We need to multiplex six channels with guard bands of 400 Hz using FDM. Calculate the minimum bandwidth of the link to prevent interference. b. Explain the analog carrier system used by telephone companies. c. Describe two other applications that use FDM other than analog carrier system. d. Four channels are multiplexed using TDM. Each creating 440 characters per second. The interleaved unit is two characters, and two synchronizing bits are added to each frame. Based on this information, find: The data rate of each source, i. ii. the frame rate, ii. the duration of each frame, and iv. the size of a frame in bits. v. the data rate of the link