finding the thermocline

[Tad Pole]

OK i have a Lowrance x515c df fish finder i am also lead to believe this is a good (quality) unit one thing i have yet to see on it is a thermocline,OK now i have a few questions.
1. is it possible that i don't know what I'm looking for or will it be obvious?
2.is the unit capable of seeing a thermocline?
3.do i have it set right?and typically what are the settings to be able to see a thermocline?

any help with this will be a great help thanks

[Butch]

I suggest that you turn up the 'gain' until you have too much clutter on the screen, then back it down just a little so the clutter is mostly near the surface. Depending on how well the thermocline is set up, on my Garmin 240 it will look like a bits of clutter in a somewhat wavy band that appears and disappears and often varies somewhat in thickness and depth, or a distinct band that looks almost like a large downrigger weight across the screen, or anything in between.