L3 Comminications SERIES 5000 Operation And Maintenance Manual - 4.19 Layback
Layback
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4.19 Layback
Layback
Click this button to enter the cable layback parameters. The Layback dialog box
will open shown in Figure 4-71.
Navigation position information is obtained by the location of the GPS antenna.
The parameters in the Layback dialog box are used to increase the accuracy of the
towfish and target positions that are calculated by SonarPro. These parameters
become part of the sonar data record and are stored during data collection. The
layback calculation is always active on the target and towfish positions. The more
accurate the information entered here is, the more accurate the positioning
information will be.
4.19.1 Entering the Layback Parameters
The layback parameters are entered in the Layback dialog box as follows:
Cable Out Source.
Select the
Manual
option if you want to manually enter
the length of cable out; select the
External
option to obtain the length from a
winch status input. If you select the
Manual
option, enter the length of cable
out in the
Cable Out
scroll box in the units shown. This scroll box is available
only if you selected this option.
Display Units.
Select the
Meters
option to enter and display the layback
parameters in meters; select the
Feet
option to enter and display the parameters
in feet.
Figure 4-71:
The Layback Dialog Box