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Communication

  • The process of data transfer from one person to another person is called communication. All the living organisms in the earth communicate. If two persons are far away (they are not near with respect to each other), then the message from one person needs to be modulated and transmitted to the other person. For doing like this it requires one transmitting antenna and one receiving antenna. The message from one person will be encoded, modulated and transmitted to the other through a transmitting antenna. The receiving antenna will collects the transmitted signal and it decodes the encoded data. The way of communication can be either one sided (example T.V, radio etc) or two way communication (Mobile phones).

    The communication may be either analog or digital communication.
    Analog means we are transmitting the signal in the analog form.
    Digital communication means we are transmitting the signal in the digital form.

    Digital Transmission

    Digital Transmission System Block Diagram
    Types of Pulse Modulation
    Digital Carrier Modulation Techniques
    BPSK System with Block Diagram
    ISDN - Principles, Objectives, Services, Architecture, Channels

    Microwave and Radar Engineering

    Advantages, Disadvantages and Applications of Microwaves
    Rectangular and Circular Cavity Resonators
    Klystron in Microwave Engineering
    Velocity Modulation in Klystron Amplifier
    Bunching Process in Microwave
    Reflex Klystron Oscillator
    Magnetron Oscillator in Microwave Engineering
    Travelling Wave Tube in Microwave Engineering
    Gunn Diode and Tunnel Diode
    Waveguides in Microwave Engineering
    Scattering Matrix in Microwave Engineering
    Horn Antenna - Working, Advantages and Applications
    Block Diagram of Microwave Transmitter and Receiver
    Microwave Link Repeater

    Satellite Communication

    Satellite Communication Overview

    Audio and Video Systems

    Audio and Video Systems
    Nature of Sound
    Properties of Sound
    Frequency Response and Equalization
    Microphones Types
    Loud Speakers Types
    Magnetic Recording and Reproduction of Sound
    Need of DC and AC Biasing
    Recording of CD (Compact Disc)
    Hi - Fi and Stereo
    Dolby System

    Introduction to TV

    TV Camera Tubes
    Sequential and Interlaced Scanning
    Calculation of Approximate Bandwidth in 625 Line Systems
    TV Standard and Frequency Requirements
    Blanking, Retrace, Synchronizing and Equalizing Pulses
    Composite Video Signal
    Positive and Negative Modulation
    Monochrome TV Transmitter
    Monochrome TV Receiver
    Picture Tube



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