13-23
13.3.4 About the water temperature measurement marker
The water temperature measurement marker (white) is automatically inscribed on the track at
preset intervals when the Water Temp. Graph in the Graph Display menu is turned on. When the
track is erased so is this marker. To hide the marker, turn Water Temp. Graph off in the Graph
Display menu.
Summary of Contents for GD-280
Page 1: ...COLOR GPS PLOTTER GP 280 380 680 COLOR VIDEO PLOTTER GD 280 380 680...
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Page 260: ...A 2 2 World Time Chart...
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