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System Overview 

The JRSO SyQwest Bathy-2010 system is installed in the Underway Geophysics Lab and consists of a 10kw LPT Transmitter (located at the bottom of the rack), a Sonar Processor, and Windows computer. It is designed to provide the JRSO with full ocean depth bathymetry and sub-bottom profiling with a 3.5 kHz transducer array consisting of 12 transducers and a single 12 kHz transducer located in the sonar dome.  The sonar dome is attached to the ship’s hull forward of the moon pool, approximately where the gym is.

The 3.5 kHz frequency is used for depth bathymetry and sub-bottom profiling and is set as Channel 1 (Ch. 1). The 12 kHz is used for full ocean depth bathymetry and is set as Channel 2 (Ch.2).   The primary function of the sonar systems is to provide water depth for the drilling operation (see Depth Correction manual).  Secondarily the sonar system can be used to collect bathymetry and sub-bottom data while underway and on site.  Data is archived and sent to NOAA's National Centers for Environmental Information (NCEI).

The system was altered from its original configuration and uses a JRSO computer and communicates with the Sonar Processor via an Ethernet cable from the A00107 board to a Gigabit NIC board in the computer.  See the 350 Tech Report for details.

About This User Guide

This user guide outlines the configuration of the JRSO’s Bathy2010 system and how it is operated on the JR.  The user should be familiar with the SyQwest Bathy2010 user manual but be aware that there are a few differences between how the JRSO system is set up and that the JRSO may not use all functions of the system or use them differently.

System Start Up

  • From a cold start switch on the Linear Power Transmitter (LPT) via the circuit breaker switch on the bottom right corner of the LPT front panel.
  • The Sonar Processor Unit is provided power via the LPT power strip. Open the Bathy-2010 panel with the key and switch on the Processor unit via the round black button on the panel in front of the unit. The red LED will light on the front and a blue LED will flash on the board viewed from the back.
  • Power on the computer and monitor.
  • Start up the Bathy-2010 application by double clicking the Icon on the computer desktop. During start up view the Sensor Status window located on the left side of the screen about 1/3 from the bottom. Once the status window indicates a “SENSOR:IDLE” message, you are now ready to start pinging and operate the system.

Serial Port Connections

Bathy2010 receives from and sends information to the WinFrog application via RS232 serial communication.   The JOIDES Resolution vehicle on WinFrog has devices set up to send Bathy2010 navigational information and receive depth information from Bathy2010.  Select “Configure Serial Ports” from the Edit drop-down menu to view and set-up the serial port connections.  See the WinFrog User Guide for instructions on setting up the JOIDES Resolution vehicle devices.  

Note: The serial port numbering between the Winfrog 1 and Winfrog 2 computers should be set so that the output from one computer is the same as the input to the other computer, i.e. COM 13 is the output of navigation for Bathy2010 from the WinFrog application and COM13 is the input of navigation to the Bathy2010.  Serial port numbering may change over time and can be viewed in Windows Device Manger.  See an MCS for help and details of serial port connections.

Navigation Data (GPS)

On the Navigation tab, enable serial port connection and select the serial port to use and parameters.   Ensure the correct serial port is used and the settings match the settings of the WinFrog output device called BATHY GPS – OUT.  The NMEA codes selected should match the codes sent from the WinFrog application BATHY GPS – OUT device.

When communication is set up, the navigation information will display in the upper left corner of the main sonar screen.

Data Logger (Bathymetry Output)

On the Data Logger tab, enable serial port connection and select the serial port to use and parameters.   Ensure the correct serial port is being used and the settings match the settings of the WinFrog input device named BATHY DEPTH - IN.  Select the ODEC Depth Only format for the NMEA Depth Out.


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