Receiver dependability is improved by fault detection using five satellites, i.e., Receiver Autonomous Integrity Monitoring (RAIM) that shows the integrity status in Safe, Caution, and Unsafe levels. The status is given with respect to user selected accuracy level, 10 m or 100 m. RAIM also works on DGPS signals.

The GP150D consists of an antenna and display unit. The display unit is a 6" silver bright LCD, offering optimum viewing around the clock. In order to improve position accuracy, WAAS and DGPS augmentation systems are standard. Dual configuration, with a second system, provides a backup and/or remote operation to ensure system availability.

Display mode is selectable from VideoPlotter, Text, Highway and Steering. In the Highway mode, you can intuitively see how to steer and where the next waypoint is located relative to your ship. It is useful when you are following a series of waypoints along a planned route. Steering modeVideoPlotter mode