New to garmin here . I just installed a 126sv and I can't find how to adjust the depth readout . In the live scope menus I can change the depth of the transducer but that doesn't change the readout numbers . I have another hb unit right next to it that I know reads the correct depth and there is about one foot difference in depth . I am sure it is just a matter of pushing the right button but I just haven't found it yet .