Eagle Electronics 640C, 640cDF Fish Finder User Manual


 
62
3. Press to select a different depth range. A horizontal blue bar
highlights the selected range.
4. When the new range is selected, press
EXIT to close the menu.
NOTE:
The sonar's depth capability depends on the transducer installa-
tion, water and bottom conditions and other factors.
FasTrack
This feature automatically converts all echoes to short horizontal lines
on the right side of the display. The graph on the rest of the screen con-
tinues to operate normally. FasTrack gives you a rapid update of condi-
tions directly under the boat. This makes it useful for ice fishing or
when your are fishing at anchor. When the boat is not moving, fish sig-
nals are long, drawn out lines on a normal chart display. FasTrack con-
verts the graph to a vertical bar graph that with practice, makes a use-
ful addition to fishing at a stationary location.
Sonar Page showing FasTrack.
Fish I.D.
The Fish I.D. feature identifies targets that meet certain conditions as
fish. The microcomputer analyzes all echoes and eliminates surface
clutter, thermoclines and other undesirable signals. In most instances,
remaining targets are fish. The Fish I.D. feature displays fish symbols
on the screen in place of actual fish echoes.
There are several fish symbol sizes. These are used to designate the
relative size between targets. Fish I.D. displays a small fish symbol
when it thinks a target is a small fish and a medium fish symbol on a
larger target and so on.
Structure
Bottom signal
Fish arches
In FasTrack, fish
arches show as
horizontal bars.
FasTrack
bar graph
ColorLine
Surface clutter