(Solved): 2. The following are the specifications of a C-Band GEO satellite link budget in clear air conditio ...

2. The following are the specifications of a C-Band GEO satellite link budget in clear air conditions. The calculation of the CNR in a satellite link is based on two equations of received signal power and receiver noise power.[Design the link budget for the given system and give reasons as to whether the received CNR is adequate to receive the TV broadcast.] (20 marks) C-band Satellite parameters Transponder saturated output power: \( 20 \mathrm{~W} \) Antenna gain, on axis: \( 20 \mathrm{~dB} \) Transponder bandwidth: \( 36 \mathrm{MHz} \) Downlink frequency band: \( 3.7-4.2 \mathrm{GHz} \) Signal FM-TV signal bandwidth: \( 30 \mathrm{MHz} \) Minimum permitted overall \( \mathrm{C} / \mathrm{N} \) in receiver: \( 9.5 \mathrm{~dB} \) Receiving C-band earth station Downlink frequency: \( 4 \mathrm{GHz} \) Antenna gain on axis: \( 49.7 \mathrm{~dB} \) Receiver IF bandwidth: \( 27 \mathrm{MHz} \) Receiving system noise temperature: 75K Losses Edge of beam loss for satellite antenna: \( 3 \mathrm{~dB} \) Clear air atmospheric loss: \( 0.2 \mathrm{~dB} \) Other losses: \( 0.7 \mathrm{~dB} \)