hey guys, a few years back my wife bought me a lowrance color fish finder nav combo, not sure off hand what the modle# is i am at work right now. when we got the unit i bought the $200 navionics "fishing chip" since i wanted as much information when navigating and fishing as i can get. i put the chip in and not only were there no contour lines for changes in depth, the graphics were as if my 3 year old son drew the islands and coast line. every island was made up of strait boxy lines, no curves any where, it didn't show where the chanels were any depth at all, none of the little feader creeks that go for miles, it was light blue for water/ land was a tan color. My car GPS i bought in europe had more detail of my fishing area than the chip gave me! when you zoom out there were dozens of "grid squares" other than the normal lon/lat. I called lowrance and navionics and told them that the base map that was preloaded in the unit was ok, but there was some thing obviously wrong with the fishing chip. lowrance said to talk to navionics, navionics said that it doesn't show much in my region because there are not many contour lines and the ones we have are so gradual that it isn't even noticeable. when i asked why they sell a chip for my area then, they just said we cover most areas some will be more accurate than others. have any of you had this problem? is there a setting in my lowrance unit that needs to be turned on/off or some other adjustment that needs to be made? or did i throw away $200 for a chip that is as useful as a compass to find bottom structure in 150' of water??? thanks for any help you can provide.
