GATE EC 2006 Electromagnetics Solution Q 4

GATE EC 2006 Electromagnetics Solution Q 4

In a microwave test bench, why is the microwave signal amplitude is modulated at 1 KHz ?

a) To increase the sensitivity of measurement

b) To transmit the signal to a far-off place

c) To study amplitude modulation

d) Because crystal detector fails at microwave frequencies

Ans-(d)

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