Vidyasagar Academy Wishes a Very Happy, Healthy & Prosperous Diwali to all our Students & Teachers!

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Vidyasagar Academy Wishes a Very Happy, Healthy & Prosperous Diwali to all our Students & Teachers!

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Communication Electronics

Learn everything about basics of electronic communication system. Elements, AM & FM Modulation, Side Bands, Satellite Communication and many more…

What are the elements of communication systems? Explain with classifications of communication systems

Applied Electronics

Dattaraj Vidyasagar
February 10, 1997
January 2, 2024
1

n this first part of the series we shall discuss about the fundamentals of communication systems. To exchange the useful information; like ideas, messages, an important document through a medium is called communication. The long distance electronics communication system started with the invention of telephone, by Alexander Graham Bell (1876). After that the communication systems developed very fast.

What is the Frequency Spectrum of Communication Systems? Why Modulation is necessary in wireless transmission?

Applied Electronics

Dattaraj Vidyasagar
March 26, 1997
January 2, 2024
1

We shall discuss in this article about the Frequency Spectrum of Communication Systems? Why Modulation is necessary. When signal is transmitted over an antenna, it is first converted into equivalent electromagnetic waves and after that the electromagnetic waves detach from antenna and travel into free space.

What is Amplitude Modulation? Complete Mathematical Derivation of AM Wave

Applied Electronics

Dattaraj Vidyasagar
June 3, 1997
January 2, 2024

In this topic we shall understand the process of amplitude modulation and then write the mathematical derivation of AM wave. I suggest you to take a pen and paper while reading this article and write down each step of the derivation while reading.

What is the Importance of Side Bands in Amplitude Modulation? What are the types of AM?

Applied Electronics

Dattaraj Vidyasagar
January 14, 1998
March 11, 2024

There is a great importance of sidebands in amplitude modulation. The sidebands in AM decide the bandwidth of AM wave. Also the modulation index 'm' in AM process decides the three types of amplitude modulation.

What is Frequency Modulation? Explain the process with diagram and mathematical analysis

Applied Electronics

Dattaraj Vidyasagar
March 4, 1998
January 2, 2024
1

Frequency modulation is defined as the process, in which the frequency of carrier signal is changed in accordance with the amplitude of modulating signal. To produce FM wave, a carrier signal of frequency fc is mixed with another low frequency modulating signal of frequency fm in a circuit known as frequency modulator.

Transponder – advanced satellite communication system

What is Satellite communication? Give Detailed explanation with diagram and mathematical analysis

Applied Electronics

Dattaraj Vidyasagar
April 12, 1998
January 2, 2024

The geosynchronous satellite orbits around the earth at a distance of about 36000km and it takes exactly 24 hours to complete its one revolution around earth. So it appears stationary at the location, from where it is launched.