Proper calibration of a marine radar system is crucial for accurate and reliable performance. Calibration ensures that the radar system detects targets correctly and displays them at the proper range and position. Incorrect calibration can result in false targets or missed obstacles, posing safety risks. Regular calibration checks should include adjusting the gain, clutter, and sea state settings, as well as ensuring that the antenna alignment is correct. Calibration should be performed after installation, repairs, or any changes to the system to maintain the radar’s effectiveness and ensure safe navigation.