... but, I think you all are missing some things, here. In Kosmo's first picture, it appears that the unit is measuring over 20ft of water depth ... and that's reading from the far right side of the image (possibly reading the "hump" as 20.7ft deep). Now, not being familiar with HB's, I would have to assume that the 7 in the top right hand corner means that the unit is in some kind of "zoom" mode ?? ... otherwise, his transducer is 7ft below the surface !!??

If you measure the height of the "fish", and compare that to the height of the water column ... it would still take 16 "fish", stacked one on top of the other, to equal the 2" height of the portion of the picture representing the water column. Even if the water depth is actually 20.7ft ... it still would take 16 "fish" stacked, to cover the 2" representation of that depth. That would make the fish have to be ~12" tall ... BUT, being as the unit is apparently in zoom mode ... and the fish at an unknown distance away from the transducer ... would it not be a possibility that the size representation of that "fish" could be skewed (by being closer to the transducer than the other objects pictured)???

And, unless Kosmo is 100% certain that he caught that particular fish ... how do we even know if it really is a Crappie ??

But, let's say that the unit IS in zoom mode ... reading a zoomed parameter range of 7-30 feet . The depth is still clearly 20.7 feet ... making the missing top 7ft approx. 1/3 of the equation. Now, remove 1/3 of the supposed 12" height of the "fish" ... and the fish is now 8" tall. That's still quite large for a Crappie !! Our state record Crappie was 18" "around" ... and weighed close to 5lbs !! SO ... let's say the zoom factor is +2x ... making the "fish" closer to 4" tall. See where this is all going ?? This is a flat picture, representing a 3D image ... so it's not going to be easily measured against the other dimensions, without knowing distances from the signal initiation point (transducer).

An easy to understand representation of my flawed math explanation, is this .... look at a car in your driveway, from your front door, then extend your hand & point your thumb upwards ... how big does your thumb look, in comparison to the car ?? See what I mean ?? Can you really measure your thumb, by using just the height of the car, without factoring in the distance between eye & thumb, and eye & car ??

Come on, people .... you KNOW that fish isn't 12 inches tall, because if it was ... it would be ~3ft LONG, using those methods of screen measuring. Give props to the unit for showing a reasonably good image of a fish, and to Kosmo for a good screen shot ... and not turn this thread into another "chevy vs ford" debate.

... cp