EEC 434 Digital Radio and Television Exam 2022

About this paper

EEC 434: A 2-page Second Semester Examination for Digital Radio and Television (EEC434), University of Buea College of Technology, instructors Wontchui/Tchagna, June 2022, 2 hours. Section A -- Digital TV (35 marks): Question 1 (open question, 15 marks) covers merits of digital TV over analog, 4KTV vs Full HDTV differences, digital TV transmission principles, and the use of geostationary satellites for TV. Question 2 (TV System, 20 marks) reproduces a digital TV receiver block diagram (tuner/IF/demodulator front end, sync/clock, equalizer, sweep/CRT display, plus a parallel digital decode path: trellis + Reed-Solomon FEC, demux, video/MPEG-2 and audio/AGC decompression, D/A conversion), asking for its name and a step-by-step explanation. Section B -- Digital Radio (35 marks): Question 3 covers the concept of digital radio and broadcaster benefits, advantages of the DAB standard, differences between DAB and DAB+, three ITU-recognized digital radio systems (DAB, HD Radio/IBOC, DRM) with their frequency bands/audio coding/modulation, and the HD Radio transmission system block diagram.