Class 9 Science | Telecommunication

Science and Technology, Class 9 · Unit 13

Telecommunication

Transmitter, channel, receiver · Modulation · AM and FM

What we will be able to do

📡

Define telecommunication

🔗

Explain the transmitter, channel and receiver

🌊

Understand modulation and demodulation

📻

Tell AM from FM

“

A message never travels itself. It travels as a signal.

The notes are free to read in full.

Presenter notes: Today we find out how a voice or a picture from far away reaches us in an instant.