Quote Originally Posted by rickyberetired View Post
I finally broke down and moved in 21st century. I didn't go high dollar but bought a Hummingbird 598ci HD SI (actually bought it 1 1/2 yrs ago) and I still can't figure it out. It's prob bottom of line offering side imaging. Anyone know of a class offered to help us folks who need Depth Finders for Dummies? Guys I'm serious would love to be able to interpret what I am seeing.
Randy Kuhens of Kick N' Bass guides out at KY Lake offers a sonar class, it is very helpful and worth the time and money! Although he specializes and uses Lowrance I'm sure there are enough parallels to Humminbird.

http://kicknbass.net/sonar.php