Modulation And Its Necessity
Chapter Name : Communication Systems |
Sub Topic Code : 101_12_15_07_04 |
Topic Name : Modulation And Its Necessity |
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Sub Topic Name : Mixing Up Of Signals From Different Transmitters |
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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 radio transmitter?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Radio transmitter | A radio transmitter is an electronic device which, when connected to an antenna, produces an electromagnetic signal such as in radio and television broadcasting, two way communications or radar. |
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:
A radio transmitter is an electronic device which, when connected to an antenna, produces an electromagnetic signal such as in radio and television broadcasting, two way communications or radar.
What you learn in Practice:
RC vehicles communicate through radio signals between the receiver in the RC vehicle and a hand-held transmitter.