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Answer question 12 showing fully all the steps. Solution should be simplified and easy to understand as much as possible!

Answer question 12 showing fully all the steps. Solution should be simplified and easy to understand as much as possible!

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Answer question 12 showing fully all the steps. Solution should be simplified and easy to understand as much as possible!

8) A ship is sailing with the part submerged of about 80 m. The crew emits high frequency sound pulses into water from a RADAR and wait for the reflected signal. Il the average speed of sound in water is 520 m s, estimate a value for the time lapse between the emission of the pulse and reception of the reflected signal if the sailors are assured that thes can continue on the same route with no deviations for fear of obstacles. Justify your answer. 9) a) What is a base station? b) State the role of a base station and a cellular exchange during the making of a call from a mobile phone handset. 10) Discuss the impact of mobile phones on the society on a) disaster response b) human health c) etiquette 11) A simple tuning radio circuit has an inductor of inductance 6.0 mH and a frequency of 1015 Hz. Calculate the value of the capacitance required for its functioning. 12) In a mobile phone telecommunication system state the role of a) the base station b) SIM c) PSTN 13) In a tabular form, compare the wire pair and the fibre optic as communication channels under the following headings: a) description (what they are) b) advantages and disadvantages 14) a) State 2 advantages and 2 disadvantages of A.M over F.M broadcasting. b) A radio broadcast is transmitted using amplitude modulation at a carrier frequency of 6.80 x 102 Hz between the lower side band and upper side band. Give the meaning of each of the underlined phrases. 15) a) Draw a sketch to show the main steps that an information signal goes through before it is transmitted over long distances using radio systems. b) Name 2 ways by which radio waves can travel from a transmitting aerial. c) What do you understand by telecommunication? 16) a) Draw the block diagram of a mobile phone handset and explain it in brief. bi State 2 differences between a mobile phone and a walkie talkie or a community based radio. c) What are the full meanings of the abbreviations: SIM, SMS, MMS, MIN, MTSO, PSTN. CODEC, Wi-Fi and MODEM?
Transcribed Image Text:8) A ship is sailing with the part submerged of about 80 m. The crew emits high frequency sound pulses into water from a RADAR and wait for the reflected signal. Il the average speed of sound in water is 520 m s, estimate a value for the time lapse between the emission of the pulse and reception of the reflected signal if the sailors are assured that thes can continue on the same route with no deviations for fear of obstacles. Justify your answer. 9) a) What is a base station? b) State the role of a base station and a cellular exchange during the making of a call from a mobile phone handset. 10) Discuss the impact of mobile phones on the society on a) disaster response b) human health c) etiquette 11) A simple tuning radio circuit has an inductor of inductance 6.0 mH and a frequency of 1015 Hz. Calculate the value of the capacitance required for its functioning. 12) In a mobile phone telecommunication system state the role of a) the base station b) SIM c) PSTN 13) In a tabular form, compare the wire pair and the fibre optic as communication channels under the following headings: a) description (what they are) b) advantages and disadvantages 14) a) State 2 advantages and 2 disadvantages of A.M over F.M broadcasting. b) A radio broadcast is transmitted using amplitude modulation at a carrier frequency of 6.80 x 102 Hz between the lower side band and upper side band. Give the meaning of each of the underlined phrases. 15) a) Draw a sketch to show the main steps that an information signal goes through before it is transmitted over long distances using radio systems. b) Name 2 ways by which radio waves can travel from a transmitting aerial. c) What do you understand by telecommunication? 16) a) Draw the block diagram of a mobile phone handset and explain it in brief. bi State 2 differences between a mobile phone and a walkie talkie or a community based radio. c) What are the full meanings of the abbreviations: SIM, SMS, MMS, MIN, MTSO, PSTN. CODEC, Wi-Fi and MODEM?
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