Analog transmission and digital transmission are two different methods of transmitting data over a communication channel. The main differences between analog and digital transmission are:
Nature of signal - Analog transmission uses a continuous signal that varies in amplitude or frequency, while digital transmission uses discrete signals that are represented by binary digits (0s and 1s).
Noise resistance - Analog signals are more susceptible to noise and interference, which can degrade the quality of the signal and make it difficult to interpret. Digital signals, on the other hand, are more resistant to noise and interference, since they use discrete values that can be easily distinguished from random fluctuations.
Bandwidth - Analog signals require a wider bandwidth than digital signals, since they use a continuous range of frequencies to transmit information. Digital signals, on the other hand, can be compressed and transmitted more efficiently, requiring less bandwidth.
Quality - Analog signals can degrade over distance due to noise and other factors, resulting in a loss of quality. Digital signals, however, can be transmitted over long distances without any loss of quality, as long as the signal strength is sufficient.
Security - Digital signals can be encrypted and secured more easily than analog signals, since they are represented by discrete values that can be manipulated using algorithms. Analog signals, on the other hand, are more vulnerable to interception and manipulation.
In summary, analog transmission uses continuous signals that vary in amplitude or frequency, while digital transmission uses discrete signals that are represented by binary digits. Digital transmission is more resistant to noise and interference, requires less bandwidth, can be transmitted over longer distances without loss of quality, and can be encrypted and secured more easily than analog transmission.
