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Sonar Menu Tab
Noise Filter
(Advanced)
Settings: Off, Low, Medium, High 1, High 2, High 3;
Default = Low
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 Off setting removes all filtering. Low, Medium, High 1, High 2, and High 3
settings add progressive filtering of the sonar returns. High 1, High 2, and High
3 are useful when there is excessive trolling motor noise, but in some deep
water situations, the High settings may actually hinder your unit’s ability to find
the bottom.
Max Depth
(Advanced)
Settings: Various, see below.
Max Depth
controls the maximum depth of operation. When Max Depth is set
to Auto, the Fishing System will acquire bottom readings as needed (within the
capacity of the unit). When Max Depth is set to match your fishing maximum
depth, your Fishing System will not attempt to acquire sonar data below that
depth, so more detail will be shown on the screen.
NOTE:
If the bottom is deeper than the Max Depth setting, the digital depth
readout will flash, indicating that the Fishing System cannot locate the bottom.
The available Max Depth settings are determined by your Humminbird® model as
follows:
•
788ci HD:
Auto to 1500 ft, Auto to 500 m (International Models only);
Default = Auto
•
788ci HD DI:
Auto to 1500 ft, Auto to 500 m (International Models only);
Default = Auto
•
788ci HD XD:
Auto to 3200 ft, Auto to 975 m (International Models
only); Default = Auto
