Bandwidth Of Transmission Medium
Chapter Name : Communication Systems |
Sub Topic Code : 101_12_15_05_01 |
Topic Name : Bandwidth Of Transmission Medium |
|
Sub Topic Name : Bandwidth Of Transmission Medium |
|
Introduction
A communications system is a collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whole.
Pre-Requisites:
Communications system
Activity:
Radio.
Real Life Question:
What is Bandwidth?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Bandwidth | Bandwidth is the difference between the upper and lower frequencies in a continuous set of frequencies. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Broadcasting | Broadcasting is the distribution of audio and video content to a dispersed audience via any audio or visual mass communications medium, but usually one using electromagnetic radiation (radio waves). |
Real life uses :
Communication.
Places to visit :
Radio station.
Practical examples around us
| Examples | Explainations |
|---|---|
| Radio communication system | A radio communication system is composed of several communications subsystems that give exterior communications capabilities. |
What you learn in Theory:
The commonly used transmission media are wire, free space and fiber optic cable. Coaxial cable is a widely used wire medium, which offers a bandwidth of approximately 750 MHz.
What you learn in Practice:
Optical communication using fibers is performed in the frequency range of 1 THz to 1000 THz (microwaves to ultraviolet). An optical fiber can offer a transmission bandwidth in excess of 100 GHz.