Design a two-way radio link to operate over Earth-Mars distances for data and picture transmission with a Mars probe at 2.5 GHz with a 5 MHz bandwidth. The minimum SNR at the Earth receiver needs to be 18 dB and the sky temperature is 115 K. The minimum SNR at the Mars receiver is 20 dB and the sky temperature is 3 K. Specify the effective area of Mars and Earth antennas and the transmitted power (total over entire bandwidth) at each end. Due to space limitations, the Mars antenna cannot have an effective area larger than 7 m (this is the effective area provided by a 3 m diameter dish antenna). You have more flexibility with the design of the Earth antenna but make sure all parameters are reasonable and realizable. The Earth-Mars distance is approximately 6 light-minutes.