Overlay Data: Sets the data shown on the sonar screen.
Sonar Alarms
WARNING
The sonar alarms feature is a tool for situational awareness only and may not prevent grounding in all
circumstances. It is the obligation of the vessel operator to ensure safe operation of the vessel.
CAUTION
The Beeper setting must be turned on to make alarms audible (
Sounds and Display Settings, page 152
). Failure
to set audible alarms could lead to injury or property damage.
NOTE: Not all options are available on all transducers.
From an applicable sonar view, select Menu > Sonar Setup > Alarms.
You can also open the sonar alarms by selecting 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.
FrontVü Alarm: Sets an alarm to sound when the depth in front of the vessel is less than the specified value,
which can help you avoid running aground (
Setting the FrontVü Depth Alarm, page 85
). This alarm is
available only with Panoptix FrontVü transducers.
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
Fish: Sets an alarm to sound when the device detects a suspended target.
•
sets the alarm to sound when fish of all sizes are detected.
•
sets the alarm to sound only when medium or large fish are detected.
•
sets the alarm to sound only when large fish are detected.
Advanced Sonar Settings
From a Traditional sonar view, select Menu > Sonar Setup > Advanced.
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.
Btm. Srch. Limit: Limits the search for the bottom to the depth selected when the Range setting is set to Auto.
To minimize the length of time it takes to find the bottom, you can select a depth to limit the search for the
bottom. The device will not search for the bottom deeper than the selected depth.
80
Sonar Fishfinder
