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Noise Filter
(Advanced)
Noise Filter adjusts the sonar Noise Filter to limit interference on the display
from sources such as your boat engine, turbulence, or other sonar devices. The
Noise Filter menu choice is available when User Mode is set to Advanced (see
Setup Menu Tab: User Mode).
NOTE: The Off setting removes all filtering; Low, Medium and High settings add progressive
filtering of the sonar returns. In some deep water situations, the High setting may actually
hinder your unit’s ability to find the bottom.
To change the Noise Filter setting:
1. Make sure you are in Advanced User Mode, then highlight Noise Filter
on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Noise
Filter setting. (Off, Low, Medium, High1, High2, High3, Default = Low)
Max Depth
(Advanced)
Max Depth adjusts the maximum depth of operation. The performance of your
Fishfinder can be tuned to the maximum depth you will be fishing in by setting
the Max Depth. When a maximum depth is set, your Fishfinder will not attempt
to acquire sonar data below that depth, thus increasing overall performance.
When Max Depth is set to Auto, the Fishfinder will acquire bottom readings as
needed (within the capacity of the unit). If the bottom is deeper than the Max
Depth setting, the digital depth readout will flash, indicating that the
Fishfinder cannot locate the bottom. The Max Depth menu choice is available
when User Mode is set to Advanced (see Setup Menu Tab: User Mode).
To change the Max Depth setting:
1. Make sure you are in Advanced User Mode, then highlight Max Depth
on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Max
Depth setting. (AUTO, 10 to 800 feet, 3 to 260 meters [International
Models only], Default = AUTO)