Echotrac MKIII Operator's Manual 4.06
Page 28 of 48
January 21, 2019
5.2.4.10 Print Parameters
Selecting Print Parameters and pressing the Enter key will cause all of the parameters and their associated
values being printed on the chart. This feature is ideal for making a permanent record of the conditions of a
survey. It also comes in handy as a troubleshooting tool.
5.2.4.11 Grey Shades
When selected to ON the printer will burn the return signal to 16 grey shades based on signal strength. When set
to OFF the printer will burn any signal black. The OFF position will display the maximum contrast. If this
parameter is changed from ON to OFF, the Echotrac will change the setting of Threshold to 10%. This is done so
the digitizer value agrees with the printed record since lower amplitude signals will now be visible on the chart.
When changing this parameter from OFF to ON the Echotrac will change the setting of Threshold to 25%.
5.2.4.12 Aux Line
Prints a line on the chart that can be used as a transducer draft line, dredge depth line etc.
5.2.4.13 Dual Mode
This parameter determines how the data is printed on the chart when both channels are enabled. If Hi Dark is
selected then the High frequency data is printed darker than the low frequency data. If Low Dark is selected then
the Low frequency data is printed darker than the High frequency data. If High Only is selected then only the high
frequency channel will be printed. If Low Only is selected, only the low frequency channel will be printed.
5.2.4.14 Heave Correction
This parameter determines if the data on the chart is corrected for heave if a motion sensor is connected to the
Echotrac.
5.2.5 Communications Menu
The status and condition of all four serial ports can be
modified or monitored in the Communications Menu.
5.2.5.1
I/O – Com1
Com 1 is the default port for connection to data
acquisition systems. Five choices are possible for
the standard bidirectional serial port. Depth data
has the following formats:
1) Echotrac SBT, or Single Bottom Tracking
2) Echotrac DBT, or Dual Bottom Tracking
3) DESO 25 format
4) NMEA Out (DBS Proprietary String)
5) NO_COE (New Orleans Core of Engineers)
6) DESO_DDV_C (outputs Depth Draft and Sound Velocity every two seconds with Chart control.
7) DESO_DDV_NOC (outputs Depth Draft and Sound Velocity every two seconds without Chart control.
8) Heave (the depth is not corrected for heave, but the heave value is appended to the end of the output string (see
).
Refer to section
7.1.1 SERIAL OUTPUT STRING FORMATS
for details on each string.
Turning on Com 4, the Heave input port, automatically corrects the depth output (SBT, DBT,
DESO25 or NMEA) from Com 1, by the amount of the input heave value. Only the designated
Heave string outputs the actual value of the heave correction and does not “correct” the depth
output for that heave value.
Summary of Contents for Echotrac MKIII
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