Multiple choice

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

  1. To increase the sensitivity of measurement

  2. To transmit the signal to a far-off place

  3. To study amplitude modulations

  4. Because crystal detector fails at microwave frequencies

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Correct Answer: Because crystal detector fails at microwave frequencies