Communication Engineering - FM Generation: Indirect Method (Armstrong Method)

Описание к видео Communication Engineering - FM Generation: Indirect Method (Armstrong Method)

This video lecture is about the one of the method of Indirect Method of FM Generation i.e. Armstrong Method. The FM modulator circuits are used for generating FM signals can be broadly divided into two categories: Direct Methods and Indirect Methods. The working operation of Armstrong method can be divided into two parts as follows: Part I: Generate a narrow band FM wave using a phase modulator & Part II: Use the frequency multipliers and mixer to obtain the required values of frequency deviation, carrier and modulation index. Working and principle of Armstrong Method has been discussed in detail along with the phasor diagram.

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