What is the meaning of modulation and demodulation?

Demodulation is extracting the original information-bearing signal from a carrier wave. A demodulator is an electronic circuit (or computer program in a software-defined radio) that is used to recover the information content from the modulated carrier wave.

Keeping this in consideration, what is the purpose of the modulator?

This is often a preliminary step in signal transmission, either by antenna or to another device such as a television. A demodulator is a circuit that is used in amplitude modulation and frequency modulation receivers in order to separate the information that was modulated onto the carrier from the carrier itself.

What is a modulator in biology?

1. To regulate or adjust to a certain degree: physiological mechanisms that modulate the body's metabolic rate. 2. Biochemistry To act on (a receptor, for example) as an activator, an inhibitor, or both. mod′u·la·bil′i·ty n.

Why do we need modulation?

Modulation allows us to send a signal over a bandpass frequency range. If every signal gets its own frequency range, then we can transmit multiple signals simultaneously over a single channel, all using different frequency ranges. Another reason to modulate a signal is to allow the use of a smaller antenna.

You May Like Also

  • What is the use of carrier signal?
  • What is the baseband signal?
  • What is the mean of the sample means?
  • What is the mean of the distribution of sample means?
  • What do you mean by the means of transport?
  • What is ASK modulation and demodulation?
  • What does a means to mean?
  • What does by all means mean?
  • Does it mean or does that mean?
  • What does it mean to have no means?