Quote Originally Posted by rnvinc View Post
What I see is 1 Fish arch (at 5.5ft) in the right pane that is also indicated in the left pane with a Fish ID symbol ...

The diagonal lines are bubbles rising from the lake bottom ...

You might try dropping a large profile bait directly under the xducer and raise Sensitivity to see the comparison in both panes ...

There is also a 2d Sensitivity Offset under the Sonar tab to raise Sensitivity of the 200kHz independent of the 455kHz ...

Rickie
Are you sure on this unit you can change the sensitivity of the 200khz independent of the 455khz. I believe the settings affect both. I did notice that it looks like it's marking that fish with an arch in the 200 which also baffles me because I have the fish ID set to on.