Quote Originally Posted by rnvinc View Post
Use the Range setting (I think that's what it's called)...under the Sonar menu to eliminate the upper section of the water column...

This will, in effect...zoom the rest of the displayed image...making the structure bigger on the screen..

Rickie
Quote Originally Posted by rnvinc View Post
You may be correct for all the HDS...

I'm probably mis-interpreting the manual for those units...

It states...

Range - Used to select the section of the water column- from the surface to the bottom- shown on the display

Rickie
Rickie those are for sonar settings. If there is a bottom lock like the 2d has I haven't found it, I just zoom in.

Lake conditions play a big role in clear images.