The R4 DGPS Navigation Sensor enhances GPS signal accuracy by using differential correction signals. This technology ensures precise location data for vessels, even in remote and challenging environments where regular GPS signals may not be reliable. The R4 sensor integrates seamlessly into navigation systems, offering real-time data that can guide vessels safely through waters. Regular maintenance and calibration of the sensor are essential to maintain optimal performance, especially in changing environmental conditions like rough seas or heavy rain. It plays a critical role in maritime safety, providing accurate positioning data crucial for route planning, collision avoidance, and navigation in congested waters.