Simrad GO XSE Installation Manual page 40

40
A
Lowest point of vessel offset: Set the distance from the
transducer to the lowest point of the boat in the water - this
should be set as a negative value. For example, - 0.3 m (-1 ft).
B
Depth below surface (waterline) offset: Set the distance from
the transducer to the surface - this should be set as a
positive value. For example, +0.5 m (+1.77 ft).
For depth below transducer, set the offset to 0.
Echosounder software version
For external sounder modules, the software version is displayed in
the header of the Echo Installation dialogue. For upgrade software
information, refer to "Software updates and data backup" on page 58.
Water speed calibration
Water speed calibration is used to adjust the speed value from the
paddle wheel to match the actual boat speed through the water.
Actual speed can be determined from GPS speed over ground
(SOG) or by timing the boat over a known distance. Water speed
calibration should be performed in calm conditions, with minimal
wind and current movement.
Increase this value above 100 % if the paddle wheel is under
reading, and decrease this value if it is over reading. For example, if
the average water speed reads 8.5 knots (9.8 MPH) and SOG records
10 knots (11.5 MPH) the calibration value needs to be increased to
Software Setup | GO XSE Installation Manual
B
A