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JEE Main Communication System Revision Notes

JEE Main Communication System Revision Notes - PDF Download

JEE Main 2021 Exam syllabus is reduced by 30% for both classes XI and XII and the paper will be CBT mode only.

One question from unit 20, i.e., Communication System, is expected to come in the JEE Main 2021 with a weightage of 3.33%. 

At Vedantu, we promise to provide you the simplified and concise study materials like the JEE Main Communication System Revision Notes prepared by our highly qualified IIT faculties.

If you wish to be a part of our successful studying program, please go through the Notes of Communication System provided below.

JEE Main Communication System Revision Notes part-1
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FAQ (Frequently Asked Questions)

1. Can You Give the Preparation Tips for Cracking the JEE Main Exam 2021?

Our subject experts suggests the following tips:

  1. Solve model papers to identify the points you missed in learning.

  2. Solve JEE Main PYQP to understand the difficulty level of questions asked in the past years.

  3. It is not mandatory to solve full-length papers; you can practice chapter-wise tests within a limited time. 

  4. Revise the Previously Studied Topics Daily.

2. Write Applications for Skywave Propagation.

The applications of skywave propagation in communication systems are listed below:

  1. Line-of-sight communication,

  2. Satellite communication,

  3. Microwave linking, and

  4. Radar communication.

3. What is Optical Fiber?

Fiber optics or optical fiber is a long thread comprising a central core of glass/plastic of uniform refractive index. It refers to the medium and technology that is associated with the transmission of information/message signals in the form of light pulses along a glass/plastic thread. This technology is suitable for long-distance communication and high-performance data networking.

4. Write the Purpose of Modulation.

The purpose of modulation is to produce a modulated signal matching the characteristics of a transmission medium. In radio communications, modulation helps in the transmission of message signals into the available high-frequency radio channel.

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