Radio Communication System - Block Diagram and types: Radio communication is very popular technique of communicating a message. The radio waves are electromagnetic waves produced due to escape of electrical energy into free space. They…
Foster Seeley Detector - Circuit Diagram, Working and its Phasor Diagram: The circuit diagram of the Foster Seeley detector is shown in Fig. 22.54. This Foster Seeley Detector circuit consists of an inductively coupled double…
Balanced Slope Detector - Working, Advantages and Disadvantages: The circuit of a balanced slope detector is shown in Fig. 22.53 (a). This circuit employees two slope detectors connected back to back to the opposite ends…
Simple Slope Detector - Circuit diagram and its Characteristics: The circuit diagram of a simple slope detector is depicted in Fig. 22.52(a). This Slope Detector circuit consists of a tuned circuit which is slightly detuned…
Transistor Detector Circuit Working Principle: It is possible to achieve amplitude demodulation by using a three-element electronic device. A typical example of such a configuration is illustrated in Fig. 22.51. This circuit is called a…
Linear Diode Detector or Envelope Detector: Diode detection is called the envelope detection as it recovers the audio frequency signal envelope from the composite signal. Diode detector is also called the linear detector as its…
Square Law Detector Circuit and Working Principle: The square law detector circuit is used for demodulating modulated signal of small amplitude (i.e., below 1 V) so that the operating region may be restricted to the…
Amplitude Detection Process: Amplitude Detection - The process of demodulation demands that the modulated wave has some definite average value and the carrier wave is separated out. Hence in demodulation of an AM wave two…
What is Demodulation or Detection? - Need of demodulation: Demodulation or detection is a process of recovering the original modulating signal (intelligence) from the modulated carrier wave i.e., the demodulation is a process reverse of…
Single Sideband Modulation (SSB): Single Sideband Modulation (SSB) can he obtained by passing the output of a carrier suppressor (product modulator) through filter circuits that are selective to transmit one sideband while suppressing the other.…
