F2

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b)

B2F2006

Draw the block diagram of a DSO and explain its working?
How a Zener diode functions as a voltage regulator explain?
Explain how AND, OR and NOT function can be implemented using universal
gates?
PART C

Answer any four questions, each carries 5 marks.
With a neat block diagram explain the working of AM super heterodyne receiver?
Explain the basic principle of cellular communication?
Write the equation of an AM wave and explain each term?
Draw the frequency spectrum and find the associated bandwidth?
Explain the working of an optical communication system?
Explain the basic parts of a cable TV distribution system?

Draw the schematic of DTH system and explain its working?
3 ‏اد ید كد‎

ன்‌ SCMS

School of Engineering & Technology

(5)
(5)
(5)

(5)
(5)
(3)
(2)
(5)
(5)
(5)