Neither do all the channel occupy all the frequencies nor is there no channel at every frequency, but every channel has its own unique frequency like an ID. As you tune, the radio you find various stations at various frequencies. The bandwidth of FM radio is 200 KHz from 88.1 MHz to 101.1 MHz for most places. Whenever you tune into a radio you find various stations at varying particular frequencies. Let’s understand this better with the help of an example. It is measured in terms of Hertz(Hz) i.e. As seen from the above representation, Bandwidth (B) of the signal is equal to the difference between the higher or upper-frequency (fH) and the lower frequency (fL). The bandwidth of a signal is defined as the difference between the upper and lower frequencies of a signal generated. Basic Terminology Used in Communication Systems.So, what is Bandwidth of a signal? Browse more Topics Under Communication Systems This is where the concept of Bandwidth comes into the picture.
This brings us to the methods employed in the process of identification of the signal. As we have come across in the discussions on the topics of Amplitude Modulation and Frequency Modulation, the original signal is superimposed on a carrier signal or changes its frequency to carry the information from the sender to the receiver where it is demodulated and converted back into the original signal.Įvery signal is composed of a large number of wavelengths of different frequencies and this signal is unique in terms of its composition. We all know that most signals are transmitted in terms of electromagnetic or radio waves.
0 kommentar(er)
