Ive noticed on my hds 7 touch that if I keep on 2d mode vs shaded. 2d shows all the reefs south of marsh island and the reefs in the pass.
Shaded looks like the pic of your unit that u posted. It shows the shallow and deep contours along with the contour line.
Yours maybe able to do tge Same thing
sent from my Galaxy NOTE II
Last edited by alphaman; 07-18-2013 at 11:03 AM.
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