My Grandfathers boat has a small Eagle Fish Finder on it. The Transducer is on the back right of the boat in the water. I don't know how to read it well and want to learn how to use the Depth Finder. When I find a Hump or Fish does this mean they are directly under the back area of the boat? Or does this mean the back region of the boat?

Thanks

The smaller ones aren't that powerful and tend to mark alot of false hits.  I wouldn't rely on it as a "fish finder" but use it more as a bottom contour reader and depth gauge.  Use it to find drop offs,holes, larger bottom structure etc

What you see is most likely 6 to 7 feet behind the boat. Just as was said don't count to much on seeing fish. The depth sounder see anything suspended as a fish. I look for depth changes, differences in bottom material. ie rock, sand silt and weedsd or wood and when conditions are right I look for bait.