A Radio Direction Finder (RDF) is used to determine the direction of a transmitted radio signal, vital for navigation and distress situations. Calibration and repair services ensure the RDF works accurately, especially during adverse weather or when navigating in unfamiliar waters. Services include adjusting the system for precise bearings, testing its performance, and repairing any faulty components. A well-calibrated RDF ensures the vessel can accurately pinpoint distress signals or navigate in low-visibility conditions, improving safety by aiding in vessel positioning and search and rescue operations.