Target Marker Export dialog box
The Target Marker function is primarily used for remotely operated vehicle (ROV) navigation. Third-party ROV software can use the time and location information to steer the ROV toward the target.
How to open
This dialog box is opened from the Display menu.
Image
Description
You can place a marker on a target of interest in the sonar view. This marker is stamped with both time and location details. You can export this time and location information to a serial port (or UDP port 20004).
To start using target markers, click DisplayEnable Target Marker.
The Target Marker Export dialog box opens when you enable the Target Marker function.
Choose a serial port in the Target Marker Export dialog box, then click OK to enable serial port export. Click Cancel to use the Target Marker function without exporting to a serial port. UDP export is available in both cases.
Once the Target Marker function is enabled, pressing number keys 0 to 9 will place a marker at the location of the arrow cursor in the sonar view.
Details
Port
Select which serial port you want to export the time and location information to.
Serial port parameters
The serial port parameters are fixed and cannot be changed. Ensure that your third-party software is set to receive the data using these values.
•  Baud Rate
9600
The speed of the serial communication.
•  Data Bits
8
The number of data bits in each character.
•  Parity
N
If required, a parity bit is used in a simple error detection algorithm for a serial port.
•  Stop Bits
1
This parameter is used to indicate the end of the transmission. It is usually set to 1.
Target Marker format
$MSTRK,xx,hhmmss.ss,nnnnnnnn.nn,c,eeeeeeee.ee,c,U<CR><LF>
$MSTRK Start character and prefix.
xx Target number, ranging from 00 to 99.
hhmmss.ss UTC time in hours, minutes, and seconds.
nnnnnnnn.nn Northing or Latitude depends on the “U” definition.
c N: North; S: South
eeeeeeee.ee Easting or Longitude depends on the “U” definition.
c E: East; W: West
U
‘f’: Northing/Easting in feet. Variable number of digits for Northing/Easting and variable number of digits for decimal-fraction of Northing/Easting.
‘m’: Northing/Easting in metres. Variable number of digits for Northing/Easting and variable number of digits for decimal-fraction of Northing/Easting.
‘l’: Lat/Lon in degrees. For Latitude: two fixed digits of Latitude degrees, two fixed digits of minutes, and a variable number of digits for decimal-fraction of minutes. For Longitude: three fixed digits of Longitude degrees, two fixed digits of minutes, and a variable number of digits for decimal-fraction of minutes.
CRLF Termination