Signal Calibration is the process of adjusting and fine-tuning measurement instruments to ensure accurate readings. This is essential in various fields, such as telecommunications and scientific research, where precise data is crucial. Calibration helps to eliminate errors and discrepancies that can arise from environmental factors or equipment wear. During Signal Calibration, a known reference signal is compared to the instrument's output. Any differences are corrected by adjusting the instrument settings. This process ensures that the measurements taken are reliable and consistent over time, which is vital for maintaining quality and performance in any technical application.