Analog signal transmission refers to the process of sending information using continuous signals that vary in amplitude, frequency, or phase. These signals represent data in a way that mimics the original information, such as sound or light. Common examples include radio waves and telephone calls, where the variations in the signal correspond to the variations in the original sound. In analog transmission, the quality of the signal can degrade over distance due to noise and interference. This can lead to a loss of clarity in the received information. Unlike digital signals, which represent data in discrete values, analog signals provide a more natural representation but are more susceptible to distortion.