Instrument: Global Positioning System Receiver
The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis. The U.S. Air Force develops, maintains, and operates the space and control segments of the NAVSTAR GPS transmitter system. Ships use a variety of receivers (e.g. Trimble and Ashtech) to interpret the GPS signal and determine accurate latitude and longitude.
C-Nav Real Time Gypsy (RTG) GPS
Northstar 941XD GPS with differential capability
Trimble Tasman P(Y) P-Code GPS
(2) Furuno GP-90D WAAS/dGPS
Furuno GP1850-WD WAAS/dGPS