What is FM transmission?
Over the years Frequency Modulated (FM) transmission has attained wide popularity due to its clarity and high fidelity in reproducing the broadcast speech or music. It can also provide a stereophonic effect to the sound produced at the receiving end. Before television came into our homes, radio was a popular entertainment medium. With FM transmission capturing the imagination of people, radio is likely to become popular once again. The earlier transmission services were basically Amplitude Modulated (AM), which could not filter the noise and hence lacked the clarity that FM can provide. But what is the fundamental difference between AM and FM transmission? In both AM and FM transmission, radio waves are modulated by mounting it on the carrier frequency, which is essential for broadcasting and propagation. In AM transmission, the waves are constant in frequency but the amplitude varies, whereas in FM transmission, the amplitude is constant and the frequency varies. In simple terms, in A
