Furuno color video plotter GD1720C - Manual (Page 190)

7. CUSTOMIZING YOUR UNIT
7-21
DEPTH LINES & SPOT SOUNDINGS DISPLAY MODES: Choose where to display depth
contours, depth data, etc.
Setting Description Default Setting
PLOT/OVERLAY Shows depth lines and soundings on the plotter and
overlay displays.
PLOTTER Shows depth lines and soundings on the plotter display.
OFF Turns off depth lines and soundings.
PLOT/OVERLAY
DEPTH LINES & SPOT SOUNDINGS DISP:
Choose the depth range at which to show
depth lines and soundings (depth contours, depth data, etc.)
Setting Setting Range Default Setting
SHOW FROM
0 m/ft/fa/pb
TO
0-99999 m/ft/fa/pb
1000 m/ft/fa/pb
ROCKS BOTTOM TYPE DEPTH DISPLAY:
Choose range for rocks depth display.
Setting Setting Range Default Setting
SHOW FROM 0 m/ft/fa/pb
TO
0-99999 m/ft/fa/pb
30 m/ft/fa/pb