installed. | Figure | B shows | the |
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| Bottom Depiction | Zero Line | ||||||||||||
default | view | when | the |
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Temp/Speed accessory is | not |
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installed. |
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Depth. The digital depth number |
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shows the water depth directly |
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beneath the transducer location. |
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Depth Range. The depth range is shown to the right of the
screen. The upper number is 0
indicating the surface of the water. The lower number is one
of the nine depth ranges available that best match the depth of the
water. As the depth of the water changes, the range changes as necessary in order to retain a bottom representation
When in Auto mode, the horizontal line at the top of the screen is the
“zero line,” representing the surface of the water. Occasionally there is a | ||||||||||||||||||||||||||||
gap in this line. This gap indicates |
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the unit is updating the display |
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| Surface Clutter Rocky Bottom | ||||||||||||||||||||||
even if the bottom is not visible |
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information is not changing. |
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New sonar information appears on |
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the right side of the graphic area of |
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the display and moves to the left as |
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new information is displayed. The |
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450TX automatically selects the |
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appropriate depth range to show the |
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depth of water beneath the |
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transducer. This range is selected so |
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the bottom representation is typically |
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shown about ²⁄₃ down the display. | Hard Bottom Soft Bottom |
9