1. Strength: A fading signal is characterized by a gradual increase or decrease in the strength of a signal, and is often used to indicate the strength of a television or radio signal. A weak signal, on the other hand, refers to a signal that is so low in strength that additional equipment or technology is usually required to enhance or receive that signal.
2. Purpose: The purpose of a fading signal is to provide information about the strength of the signal to guide the proper positioning or orientation of receiving equipment. Faint signals, on the other hand, are expected signals but require special handling due to their lower strength.
3. Application: Fading signals are commonly used in radio, television, and communications to indicate the strength or quality of a signal. Weak signals, on the other hand, are commonly used in scientific research, medicine, and astronomy, and require special equipment and techniques to capture and analyze them.
Overall, fading signals are primarily used to indicate signal strength levels, while weak signals are signals that are very low in strength and require special processing to extract and use.