Question: Question 1 ( 2 0 Marks ) ( a ) Define a communication system and explain its basic components. [ 6 Marks ] ( b

Question 1(20 Marks)
(a)
Define a communication system and explain its basic components.
[6 Marks]
(b)
An antenna has an impedance of 40. An unmodulated AM signal produces a current of 4.8. The modulation is 90 percent. Calculate:
i.
The carrier power
[4 Marks]
ii.
The total power.
[5 Marks]
iii.
The sideband power

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