1.

a) I wish to send digital data from the PC in my office to a PC at the far end of the ECE building. The information will be transmitted at a rate of 10 megabits per second. For the digital electronics on the receiving end to work properly, I need the signal it receives to look close to ideal. In other words, I need the rise time to be small compared to the bit time. What range of frequencies does the cable need to pass?

b) I was unable to find a cable that would work for situation described in part a. I talked to the computer engineers building the electronics at the receiving end. By modifying their design, they were able to relax their rise time requirements. Their system now can tolerate a rise time that is the same as the bit time. What is the new requirement on the range of frequencies the cable will have to pass?