In communication a carrier signal is a sinusoidal signal denoted by C(t)=Ac Cos(2ᴨfct) Ac= Amplitude of the carrier C(t)= carrier signal fc= carrier frequency This carrier signal is fundamental in any communication system message signal or baseband signal is modulated. There are many ways to modulate the signal one amongRead More →
Modulation allows you to transmit information using radio signals and benefits of modulation includes height of the antenna is reduced, it reduces the interference among the signals, mixing of signals is reduced, multiplexing of signals is possible, long distance communication is possible. Benefits of Modulation 1 .Height of the AntennaRead More →
What are Signals Anything that carries information is called signal. It may also be defined as any physical quantity that varies with time, space or any other independent variable. If signal depends only on one independent variable it is called one dimensional signal and if the signal depends on twoRead More →
Communication System When we are exchanging information or sharing information with someone for example by speaking, writing or sending radio signals or in any form and the process of exchanging information or sharing is called as communication system. How can we exchange information We can exchange information by using phone,Read More →