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Trimble 1 and Trimble 2 GPS Receivers are operated by ship's command only.

The sensor is essential device providing position data for a large number of scientific devices. Most sensors do not directly receive positions from GPS sensor but from motion sensor Hydrins.

The system TRIMBLE 1 / HYDRINS 1 and TRIMBLE 2 / HYDRINS 2 are alternatively sending positions to the customers. DShip is logging positions from both GPS receivers in parallel.

There are two independent systems installed, called TRIMBLE 1 and TRIMBLE 2. Both consist of an antenna Zephyr Model 2 Rugged. The receivers are of type SPS855. Antennas are installed on antenna deck above bridge. The two receivers are installed in scientific panel on bridge. TRIMBLE 1 is sending NMEA0183 telegrams to motion sensor HYDRINS 1 and DShip. TRIMBLE 2 is sending telegrams to motion sensor HYDRINS 2 and DShip.

GPS receiver TRIMBLE 1 is running as time server for several clients on board.
GPS positions of TRIMBLE 1 and TRIMBLE 2 are centered to the corresponding antenna.

Data storage in DShip system.

Unevaluated and uncorrected measurement data.

|| Device name | trimble 1 GPS \\ trimble 2 GPS || 
|| Parameters| course made good \[°\]; Date; day; EW; GPS quality indicator; month; NS; number of satellites in fix; position latitude \[°\]; position longitude \[°\]; raw time; speed made good \[kn\]; Time; UTC raw \[s\]; year ||

After the cruise the DShip data set can be extracted from https://dms.awi.de.

|| File format(s) | *.txt || 
|| Calibration certificates | NO ||