Sonar/Fish Finder (Optional)
133
select a value from -9 to +9. Experiment until you find the best setting for the current
water conditions.
Tip: If your sonar is showing more (or larger) fish than actually exist in the water, the
gain might be set too high. This would cause the sonar to mistake normal water
turbulence for fish or to mistake bait fish for large fish.
Depth Line
The depth line is an optional, horizontal blue line that you may add to the sonar display.
To activate the depth line, touch the
Depth Line
button and set it to
ON
.
Why Use the Depth Line?
The depth line is particularly helpful when trolling. Move the depth line so that it aligns
with the targets you’re interested in, and you can more easily see what depth to set your
baits. It is also helpful when mid-water fishing (for trout, for example), once again
serving as a visual aid so you can gauge the best depth for your tackle.
Move the Depth Line
When activated, the depth line first appears in the center of the screen. You can drag it
up or down as you wish, depending on what depth you want it to indicate. (Be sure to
drag directly up or down, because dragging horizontally will put the sonar screen into
History mode. If this happens, just press the
Sonar
button to return to live mode and
try again. Also, if you accidentally touch a fish target instead of the depth line, you’ll get
a target popup menu - just press
Cancel
to close the menu and try again.)
Depth Line Appears as Rectangular Plane in Contour Window
On a contour chart, the sonar window’s 2D depth line is mirrored by a 3D translucent
rectangle stationed underneath the vessel icon. This rectangle indicates the same depth
as the depth line on the sonar screen. As you move the depth line up or down on the
sonar screen, the rectangle on the contour screen also moves.
Turn Depth Line On and Off
There are two ways to activate or deactivate the depth line. On the sonar control panel,
you can touch the
Depth Line
button and select on or off from the slider control. Or, you
can press the
Setup
button on the right of the screen and select
Contour, Depth Line
.
When you turn off the depth line, it disappears from both the sonar and contour
windows.
Sonar Range
The Auto Range, Upper Range, Lower Range buttons determine the upper and lower
depth limits of the area to be displayed in the Sonar screen.
Upper Range
indicates the shallowest depth to be shown. This user-defined setting
remains in the memory as long as Maestro Navigator is running. It is reset to “btm”
(bottom) when Maestro Navigator is restarted.
Lower Range
sets the deepest depth to be shown. This user-defined setting remains in
the memory as long as Maestro Navigator is running. It is reset to “srf” (surface) when
Maestro Navigator is restarted.
Touch either button and set a specific depth. For example, to view only the area that is
between 20 and 60 feet deep, you would set upper range to 20 feet and lower range to
60 feet. The Sonar screen would then only show you that portion of the water column,
ignoring everything shallower than 20 feet or deeper than 60.
Summary of Contents for Maestro
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