increases. This is for the purpose of filtering out surface clutter.
3.1.9.4STC Length
If STC is Custom, it is possible to change the Length of the Sensitivity Time Constant.
3.1.9.5STC Strength
If STC is Custom, it is possible to change the Strength of the Sensitivity Time Constant.
3.1.9.6Surface Noise Filter
This function implements an advanced time varying filter that allows suppressing the surface clutter efficiently while leaving fish targets visible.
NOTE Thus imposing the capability of the Fish Finder to correctly detect the weakest echoes coming from a very deep bottom.
3.1.10 Display Setup
The Display Setup Menu allows you to change the color scheme of the Fish Finder display, adjusts the chart scrolling rate, enables or disables the White Line and allows determining the graphical representation of fish.
[MENU] + "DISPLAY SETUP" + [ENTER]
Fig. 3.1.10 - Fish Finder Display Setup menu
3.1.10.1Color Settings ONLY FOR COLOR CHART PLOTTER
Allows you to change the color scheme of the Fish Finder display. The available colors are Blue Background, White Background, Black Background, Gray Scale and Reversed Gray Scale.
NOTE Only Gray Scale and Reversed Gray Scale are available on the 11" Gray Levels chart plotters.
3.1.10.2Scrolling Speed
Adjusts the chart scrolling rate. Note that the scrolling rate is limited by the sound speed and the depth according with the following relation: the deeper the setting, the slower the scrolling rate. 100% is the maximum possible.
3.1.10.3White Line
Controls how the chart plotter displays information about the bottom type (hard or soft).
3.1.10.4Fish Symbols
This selection allows determining the graphical representation of underwater sus- pended targets. See the following table.
Echo | : | shows echoes |
Echo + Icon | : | shows the Fish icon and echoes |
Echo + Icon + Depth: | shows the Fish icon, depth values and the fish echoes | |
Echo + Depth | : | shows depth values |
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