AE & JE EE Quiz Analog Communication

The microwave frequency range is considered to start at:

A PWM signal can be generated by

One important application for diodes is recovering information from transmitted signals. This is referred to as

For an AM signal, the bandwidth is 6 kHz and the highest frequency component present is 600 kHz. The carrier frequency used for this AM signal is

The frequency of a signal is inversely proportional to which of the following?

In phase modulation, phase deviation is proportional to

Spectral density expresses:

Which of the following microphone does not require polarizing current?

In a broadcast communication receiver, most of the receiver selectivity is achieved in: