Sensitivity set
to 65 percent.
Colorline/Grayscale
Separates strong sonar echoes from weak sonar
echoes. That makes it easier for you to distinguish
fish or structure from the bottom. A hard return
will be shown as a wide, bright yellow area,
whereas a soft return will be a narrow reddish-
blue area.
Mark series units have a monochrome display,
so wide bands of gray indicate a hard sonar
return, while softer returns are shown as dark,
narrow lines.
SONAR combo.indb 17
Auto Sensitivity
Keeps sensitivity at a level that works well under
most conditions, reducing the needs for adjust-
ments. Auto Sensitivity is turned on by default.
Sensitivity set
to 85 percent.
Depth Range
Selects the deepest range shown on
the display. Range settings display the
section of the water column from the
water surface to the selected depth
range.
If you select too shallow a depth range, the unit will
not be able to lock onto the bottom.
17
NOTE: You can make minor (+/-4%)
changes to sensitivity with Auto Sensitivity
turned on. You will have to turn it off to
make significant adjustments.
Sonar
9/15/2011 11:55:39 AM