Signal levels refer to the strength or intensity of a signal, often measured in decibels (dB). These levels indicate how well a signal can be transmitted or received, affecting the quality of communication in systems like telecommunications and broadcasting. Higher signal levels generally mean clearer and more reliable communication. In various applications, such as audio systems or wireless networks, maintaining optimal signal levels is crucial. Too low a signal level can lead to distortion or loss of information, while excessively high levels may cause clipping or interference. Understanding and managing these levels ensures effective and efficient transmission of data.