QT ... if the "tree" is going off the left of the screen, then you have gone over that "tree" and it is now under the boat. According to how you described it, that's what I'm thinking.

That happens to me ... boat drifts, either from the wind or from the TM forward motion getting me there faster than I wanted.

Depending on the angle you have your transducer set, the screen can show a few feet behind it or many feet behind it. The screen will show the distance, forward & behind O (zero) with "zero" being the transducer's position.



If you notice in this picture ... the TM pointer mark is pointing forward of the boat -- the "top" of the tree is 20ft away -- everything on the screen from Zero to the left of the screen shows no tree, as that's 0-12ft under the boat -- the top of my LS transducer is set level with the TM motor. Were it clicked back a click or two, there would be no image on the screen from 0 back under the boat ... whereas if it were clicked forward a click or two, it would show way behind the transducer (almost being in Down Image mode). And yes, my transducer is mounted on the TM shaft.