Different types communication systems pdf

Effective communication frequently results in friendships that are more meaningful, smoother and more rewarding relationships with people on and off the job, and increased ability to meet personal needs. The best app for CBSE students now provides you latest chapter wise notes for quick preparation of CBSE board exams and school-based annual examinations. Join Taylor Hicks. Sign Up or Sign In. Powered by. Badges Report an Issue Terms of Service.

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Comment You need to be a member of Taylor Hicks to add comments! Log in with Facebook Log in with Google. Remember me on this computer. Enter the email address you signed up with and we'll email you a reset link. Need an account? Click here to sign up. Download Free PDF. Kaddu Juma. A short summary of this paper. Download Download PDF. Translate PDF. The magnitude of noise is directly related with the ability to recover the original signal without error. Below are the figures how the signal is corrupted by the noise: Figure 1: Information signal Figure 2: Noise signal Figure 3: Noise and information signal Types of Noise There are three types of noise: a External noise b Internal noise.

Below are the primary sources of external noise: a Lightning b Solar noise c Cosmic Noise d Man-made noise Lightning It is a major source of noise and is caused by the static discharge of thunderclouds.

A wide band of frequencies is generated during discharge, thus affecting mostly low- and high frequency bands up to 30MHz. These disturbances are especially intense when sunspot activity peaks approximately every 11 years. Man-made Noise It is simply noise that is produced by mankind such as from electric motors, automobile ignition systems, etc. Internal Noise Internal noise is caused by electrical interference generated within the device or circuit.

The sound is similar to that leaf shot falling on top of a tin roof. On one end of these radio systems is a transmitter that will take the information and electronically convert it into radio waves. These radio waves travel to the other end of the radio communication system, which is designed to detect and decode the waves and convert them to recognizable information. A simple two-way radio system may comprise of two handheld transceivers, for example, which are more commonly referred to as walkie- talkies.

Power line communication systems are used to transmit electronically from a source or array of sources to their destinations. A type of electronic system that often is referred to is cable television, widely known for its transmission of a plethora of channels throughout homes in addition to their use for providing Internet access.