Installation settings
Keel offset
This is a value that can be entered on the sonar Installation page to make depth readings relate to any point from the water surface, to the deepest point of the vessel.
Below are some typical ways in which the offset is used:
A)For Depth below Keel: Set the distance from transducer to the keel.
Enter a negative value, e.g. 
B)For Depth Below Transducer: no offset required.
C)For Depth Below Surface (waterline): Set the distance from trans- ducer to the surface:
Enter a positive value., e.g. 
18 ft
+0.0
20 ft
+0.5 
20.5 ft
A B C
Sonar Lowrance HDS Gen2 Touch | 51 |
