Humminbird 1197C SI - Manual (Page 60)

What’s on the Side Imaging Display
(1197c SI Combo models only)
Side Imaging displays a number of easily recognizable features that allow for accurate interpretation of bottom contour and structure. For Side Imaging
rock and gravel provide a clearer sonar return than mud and sand because of their relative density. Upward slopes that face the transducer reflect son
a number of easily recognizable features on the Side Imaging display that allow for accurate interpretation of bottom contour and structure, includin
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Depth - water depth; can be set to alarm when the
water becomes too shallow.
Temperature - water surface temperature
Speed - if a Speed accessory or GPS Receiver is
attached, the 1100 Series™ can display the speed
of the boat, and can keep a triplog of nautical or
statute miles traveled.
Course - the current direction the boat is traveling
measured in degrees from North.
Voltage
Bottom Return
Topography Changes
The water column shows the relative depth of the
water under the boat at a given time. Variations in the
width of the water column show variations in the
distance to the bottom as the boat passes over.
Shadows result from a lack of reflected sonar from
a particular area, and can be more valuable for
interpretation than the sonar reflected by the object
itself. Use shadows to help you see the image in 3
dimensions, oriented in space. You can gain insight
into the actual shape of an object, or the depth to
which it has sunk into the bottom, through shadows
on the display.
Side Imaging Range
Boat Icon 11
10
9
8
7
6
5
4
3
2
1
9
1 2
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531617-1_A - 1197c_ManE.qxp 11/6/2007 4:36 AM Page 52