How to show the bathy depth contours on a gp 1870

1

1hawnfisherman

Guest
What screen and setting do I need to goto to show the bathy depth contours on a gp 1870 with the c-map 4D chart card?
 
The high res fishing bathy is an value added option from C-map. They did run a special for awhile and many people had it for free under the special. You might check to C-map if you are not sure about yours. (1-800-424-2627)

To show the value added data go to MENU - MAP - VAD (value added data)
 
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