Block diagram of communication system
Modes of communication
Point to multipoint communication-broadcast
Range of communication
Bandwidth of some media types
Some wireless frequency bands
Different types of signals
Role of atmosphere in propagation of electromagnetic waves
Different types of waves used in communication
Need for modulation
How does size of the antenna related to the frequency of transmitted wave?
How is the effective power radiated by an antenna related to the frequency of transmitted wave?
How does mixing up of signals from different transmitters make modulation necessary?
Mechanism of modulation
Pulsed shaped carrier
Production and transmission of amplitude modulated wave
Band pass filter
Detection of amplitude modulated wave
Main applications of Internet