What is the importance of maintaining a proper Signal-to-Noise-Ratio (SNR) in digital broadcasts?

Maintaining a proper Signal-to-Noise Ratio (SNR) is crucial because it directly affects the quality and clarity of the transmission. SNR measures the level of the desired signal in relation to background noise. A high SNR indicates that the signal is much stronger than the noise, which ensures that the audio and video content transmitted is clear and free of distractions from noise.

When the SNR is low, the noise can distort the signal, leading to poor image quality, audio artifacts, or even a total loss of signal. This is particularly important in digital broadcasts where encoding and compression techniques rely on distinguishing the intended signal from noise. If noise levels are too high in comparison to the signal, the decoded output can be severely compromised. Thus, maintaining an appropriate SNR is essential for delivering high-quality broadcasting that meets the expectations of viewers.