A Signal Test Pattern is a visual tool used in broadcasting and television to assess the quality of a signal. These patterns typically consist of geometric shapes, lines, and colors that help technicians evaluate the performance of video equipment and transmission systems. By analyzing the clarity and accuracy of the displayed patterns, they can identify issues such as distortion or signal loss. These test patterns are essential for ensuring that the broadcast quality meets industry standards. They are often used during the setup of new equipment or when troubleshooting existing systems. Common examples of test patterns include the Monoscope and the Color Bars, which provide a reference for color accuracy and contrast.