Appearance: Configures the appearance of the sonar screen (Sonar Appearance Settings).
Alarms: Sets sonar alarms (Sonar Alarm Settings).
Advanced: Configures various sonar display and data source settings (Advanced Sonar Settings).
Installation: Configures the transducer (Transducer Installation Settings).
Sonar Noise Rejection Settings
From a sonar view, select Menu > Sonar Menu > Sonar Setup
>Noise Reject.
Interference: Adjusts the sensitivity to reduce the effects of interference from nearby sources of noise.
The lowest interference setting that achieves the desired improvement should be used to remove interference from the screen. Correcting installation issues that cause noise is the best way to eliminate interference.
Color Limit: Hides part of the color palette to help eliminate fields of weak clutter.
By setting the color limit to the color of the undesired returns, you can eliminate the display of undesired returns on the screen.
Smoothing: Removes noise that is not part of a normal sonar return, and adjusts the appearance of returns, such as the bottom.
When smoothing is set to high, more of the
Surface Noise: Hides surface noise to help reduce clutter. Wider beam widths (lower frequencies) can show more targets, but can generate more surface noise.
TVG: Adjusts the time varying gain, which can reduce noise.
This control is best used for situations when you want to control and suppress clutter or noise near the water surface. It also allows for the display of targets near the surface that are otherwise hidden or masked by surface noise.
Sonar Appearance Settings
From a sonar view, select Menu > Sonar Menu > Sonar Setup
>Appearance.
Color: Sets the color scheme and color gain.
Overlay Data: Sets the data shown on the sonar screen.
Depth Line: Shows a
Edge: Highlights the strongest signal from the bottom to help define the hardness or softness of the signal.
Pic. Advance: Allows the sonar picture to advance faster by drawing more than one column of data on the screen for each column of sounder data received. This is especially helpful when you are using the sounder in deep water, because the sonar signal takes longer to travel to the water bottom and back to the transducer.
The 1/1 setting draws one column of information on the screen per sounder return. The 2/1 setting draws two columns of information on the screen per sounder return, and so on for the 4/1 and 8/1 settings.
Range Lines: Shows the vertical lines indicating the distance to the right and left of the boat. Available for SideVü sonar view.
Sonar Alarm Settings
NOTE: Some settings require external accessories.
Select Settings > Alarms > Sonar.
Shallow Water: Sets an alarm to sound when the depth is less than the specified value.
Deep Water: Sets an alarm to sound when the depth is greater than the specified value.
Water Temp.: Sets an alarm to sound when the transducer reports a temperature that is 2°F (1.1°C) above or below the specified temperature.
Contour: Sets an alarm to sound when the transducer detects a suspended target within the specified depth from the surface of the water and from the bottom.
Fish Alarm: Sets an alarm to sound when the transducer detects a suspended target within the specified depth range and the specified color range.
Advanced Sonar Settings
From a sonar view, select Menu > Sonar Menu > Sonar Setup
>Advanced.
Transmit: Stops the transducer from transmitting.
Shift: Allows you to set the depth range on which the sonar is focused. This allows you to zoom in a higher resolution in the focused depth.
When using shift, bottom tracking may not work effectively, because the sonar looks for data within the depth range of the focused area, which may not include the bottom. Using shift also can impact the scroll speed, because data outside the depth range of the focused area is not processed, which reduces the time required to receive and display the data. You can zoom in to the focused area, which enables you to evaluate target returns more closely at a higher resolution than just zooming alone.
Echo Stretch: Adjusts the size of the echoes on the screen to make it easier to see separate returns on the screen.
When targets are difficult to see, echo stretch makes the target returns more pronounced and easier to see on the screen. If the echo stretch value is too high, the targets blend together, and if the value is too low, the targets might be small and difficult to see.
You can use echo stretch and filter width together to obtain the preferable resolution and noise reduction. With echo stretch and filter width set to low, the display has the highest resolution, but is the most susceptible to noise. With echo stretch set to high and filter width set to low, the display has a lower resolution, but has wider targets. With echo stretch and filter width set to high, the display has the lowest resolution, but is the least susceptible to noise. It is not recommended to set echo stretch to low and filter width to high.
Bottom Track: Sets the frequency used for determining depth.
The bottom tracking control allows you to select the specific channel that is used to track the bottom. For example, you can set the bottom tracking for the low frequency for deep water operation.
Temp. Source: Sets the channel for the water temperature log when more than one
Transducer Installation Settings
From a sonar view, select Menu > Sonar Menu > Sonar Setup
>Installation.
Transmit Rate: Sets the length of time between sonar pings. Increasing the transmit rate increases the scroll speed, but it may also increase
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