TELECOMMUNICATION SYSTEMS

State three merits of modulation in radio transmission. (3 marks)June/July 2020

State any four services provided by the transport layer of the OSI model. (4 marks)June/July 2020

State any two component failures that may produce the following faults in a mobile phone: (i) no network: (ii) _ phone not charging. (4 marks)June/July 2020

Differentiate between point-to-point and point-to-multipoint communication modes.(4 marks)June/July 2020

List any four colours contained in the signal produced by a colour bar generator. (4 marks)June/July 2020

State three functions of the horizontal section in a TV receiver. (3 marks)June/July 2020

State the three analog colour TV transmission standards. (3 marks)June/July 2020

Define each of the following as applied to antennas: (i) front-to-back ratio; (ii) gain.(4 marks)June/July 2020

Define modulation index as used in frequency modulation (FM);(2 marks)June/July 2020

State three advantages of using Automatic Gain Control (AGC) in a TV Teceiver.June/July 2020