Some Basic Components of Electronic Communications System

In the electronic communication, transmission, reception, and processing of different signals that carry information or data are included. The communication is between one or more locations around the globe. Some of the basic components required for a successful electronic communication are- transmitter, channel or medium through which the information travels, receiver, RF spectrum analyzer, and, noise.

In the communication system, the input signal (that can be a human voice or an information signal) also known as an analog signal or digital signal acts as the input signals. These input signals are fed in the transmitter. It is important to add here that the information in the input is signal is transmitted in the coded form. The system is said to be reliable and effective when errors are minimized in the process.

Transmitter- As discussed above, a transmitter is the collection of the various number of electronic devices that converts the original signal (baseband signal) into the encoded form. For example, the transmitted signal is passed through the radio transmitter that accepts the information signal and converts it into radio frequency signal. Radio signals are required if the communication or transmission is done to cover the long distance. To check the performance and the strength of the signal, RF spectrum analyzers are required. It shows the strength as well as the noise level of the signal. The signal always travels on a specific frequency. To broadcast a signal either the analog or digital modulations are used.

Communications channel- The channel is the medium through which the signals can be sent from one place to another. The channel can be a copper wire, fiber optics or satellite systems. The channels can be a radio wave and a free space also. It all depends on the nature of the modulation and frequency which is used while communication.

Receiver- The receiver works similarly to the transmitter. The receiver also includes a lot of different transmission mediums and then converts those signals or decode them into the original form. Sometimes the signal gets corrupted or attenuated by certain noise signals, but the receiver removes the attenuation up to some extent. To know more about the different communication systems, click Here.