4. The optical niber cable is used for transmission over long distances, Justify?
5. The optical fiber cable is used for transmission with high data rates, Justify?[2]
6. We want to transmit a radio signal over the FM band. There are two available frequencies, frequency 1 with \( 90 \mathrm{MHz} \), and frequency 2 with \( 96 \mathrm{MHz} \). Which frequency is better such that we may broadcast for a longer distance? Explain your solution?[2]
7. A wireless channel with \( \mathrm{BW}=1 \mathrm{MHz} \) and is operating at \( \mathrm{SNR}=15 \) and is employing 32-QAM.
A. Compute the capacity of the channel?[2]
B. Can a person transmit at a data rate of \( 5 \mathrm{Mbps} \). Justify your answer? [1]
8. A satellite takes 8 Hours in order to revolve around the Earth, assume that it has an elliptical orbit with an eccentricity of 0.2 . Compute the semi-major axis (a).?[3]
