Signal quality refers to the clarity and strength of a signal transmitted over a communication medium, such as radio waves, fiber optics, or Wi-Fi. High signal quality ensures that data is transmitted accurately and efficiently, minimizing errors and interruptions. Factors affecting signal quality include distance from the source, interference from other signals, and environmental conditions. Measuring signal quality often involves assessing parameters like signal-to-noise ratio (SNR) and bit error rate (BER). A higher SNR indicates a clearer signal, while a lower BER signifies fewer errors in data transmission. Maintaining good signal quality is essential for reliable communication in various technologies, including telecommunications and broadcasting.