(a) In a satellite communication system the height of the satellite is 3600km above earth and...

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(a) In a satellite communication system the height of the satellite is 3600km above earth and operated at 400MHz.the gain of the transmitting antenna is 20dB and that of the receiving antenna is 40dB. Find i. The free space transmission loss ii. The power received when transmitted power is 200W [4 Marks] [4 Marks] (b) A satellite communication system is operated in the C band (6GHz in the uplink and 4 GHz in the downlink) to provide satellite TV (SATV) services to customers. You have being hired by a SATV company as a telecommunication expert and have being asked to select an antenna which could be used by a customer at home to receive the satellite signals. Determine i. The type of antenna ii. The operating frequency band iii. Explain three reasons for choosing this antenna iv. Assuming that link budget calculations show that a minimum gain of 38 dBi is required, calculate the dimensions of the antenna. [2 marks] [2 marks] [4 Marks] [4 Marks] v. If the customer is unhappy with the dimensions of this antenna (it may not fit in the physical space allocated for the antenna), suggest ways in which this size could be reduced. [5 Marks] (a) In a satellite communication system the height of the satellite is 3600km above earth and operated at 400MHz.the gain of the transmitting antenna is 20dB and that of the receiving antenna is 40dB. Find i. The free space transmission loss ii. The power received when transmitted power is 200W [4 Marks] [4 Marks] (b) A satellite communication system is operated in the C band (6GHz in the uplink and 4 GHz in the downlink) to provide satellite TV (SATV) services to customers. You have being hired by a SATV company as a telecommunication expert and have being asked to select an antenna which could be used by a customer at home to receive the satellite signals. Determine i. The type of antenna ii. The operating frequency band iii. Explain three reasons for choosing this antenna iv. Assuming that link budget calculations show that a minimum gain of 38 dBi is required, calculate the dimensions of the antenna. [2 marks] [2 marks] [4 Marks] [4 Marks] v. If the customer is unhappy with the dimensions of this antenna (it may not fit in the physical space allocated for the antenna), suggest ways in which this size could be reduced. [5 Marks]

Answer rating: 100% (QA)

a i The free space transmission loss is 1446 dB ii The pow... View the full answer