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Upper Range sets the shallowest depth range that will be displayed on the Sonar
and Big Digits Views. Upper Range is often used with Lower Range.
For example, if you are only interested in the area between 20 and 50 feet
deep, you should set the Upper Depth Range to 20 and the Lower Depth Range
to 50. The Sonar View will then show the 30 foot area between 20 and 50 and
will not show the surface or the bottom (assuming the bottom is deeper than
50 feet). Greater detail will be shown for the area between 20 and 50 feet.
NOTE: A minimum distance of 10 feet will be maintained between the Upper and
Lower Range regardless of the manual settings entered.
Lower Range sets the deepest depth range that will be displayed by the unit.
Auto: The Lower Range will be adjusted by the unit to follow the bottom
automatically. Auto is the default setting.
Manual: You can adjust the Lower Range to lock the unit on a particular depth.
"M" will be displayed in the lower right corner of the screen to indicate the unit
is in Manual mode. Adjust the Upper and Lower Range together to view a
specific depth range, especially when looking for fish or bottom structure.
For example, if you are fishing in 60 feet of water but are only interested in
the first 30 feet (surface to a depth of 30 feet), you should set the Lower
Depth Range limit to 30. The display will show the 0 to 30 foot range, which
allows you to see a more detailed view than you would see if the display
went all the way to the bottom.
NOTE: A minimum distance of 10 feet will be maintained between the Upper and
Lower Range regardless of the manual settings entered.
Sonar X-Press™ Menu
Upper Range
(Advanced: 2D Sonar, 2D Big Digits Views only)
Settings: 0 to 990 ft or 0 to 327 m [International Models
only], Default = 0 ft
Lower Range
(2D Sonar, 2D Sonar Zoom, 2D Big Digits Views only)
Settings: Auto, 10 to 1000 ft, 3 to 330 m [International
Models only], Default = Auto
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