Communication is the process of sending information from one place and receiving it in other place and receiving it in another place by using or without using connecting wires. Radio communication is done without using any wires so it is also called wireless communication. Perhaps, the most important form of communication is broadcasting. The function of communication network is to transfer signal from location A to N efficiently, reliably, and as inexpensively as possible.
How Radio Communication Works:
Radio waves are produced by rapid changing current flowing through a conductor. These radio waves spread out in space like ripples produced on the surface of a pond when a stone is drooped into the water. When these fast moving radio waves strike some other conductor placed in their path at a distance point, they produce in the second conductor weak current of the same nature as the original current produces these radio waves. Thus a communication called radio communication is established between to distant point.
Here in this section we include various types of transmitter and receiver electronic circuit generally works in radio frequency. We also include circuit used in electronic communication like circuit of modem, various signal generator etc. The completer list of communication based project is given below.