Color
threshold
Traditional / CHIRP
channels
DownVision
TM
channel
100% (de-
fault)
50%
A low setting would result in only the strongest colors
or lightest shades being displayed.
Adjusting the color threshold
The color threshold’s default value is 100%, you can
adjust this setting so that less colors / shades are
displayed.
From the Sonar application menu:
1. Select Sensitivity Settings.
2. Select Color Threshold.
3. Adjust the color threshold to the required value.
4. Select OK to conrm setting and close the
numeric adjust control.
Power mode
Power mode controls the power level of the
transducer. Power mode can be set to automatic or
adjusted manually between 0% and 100%. Power
mode is only available on CHIRP, Traditional and
Legacy sonar modules.
• Auto — This is the default setting. When auto
is selected the sonar module automatically
determines the optimum setting based on the
current depth, speed, and (bottom) signal strength.
• Manual — You can adjust the power level between
in 1% increments. Lower power levels are
normally used in depth ranges less than 2.4 m (8
ft.) and higher power levels are typically selected
for depths greater than 3.7 m (12 ft.).
Adjusting the transducer power level
From the Sonar application menu:
1. Select Sensitivity settings.
2. Select Power Mode.
The power mode slider bar control is displayed.
3. Adjust the slider bar to the required setting, or
4. Select Auto to set automatic power mode.
15.21 Fish alarms
The following Fishing alarms can be set when a
depth data source is available.
• Fish — alarm sounds when a target meets the
specied sensitivity level and, is within the depth
limits (if enabled).
• Fishing Deep — alarm sounds when the detected
depth is greater than the deep limit.
• Fishing Shallow — alarm sounds when the
detected depth is less than the shallow limit.
Setting up sh alarms
From the Alarms menu homescreen > Set-up >
Alarms:
1. Select Fish.
The Fish alarms menu is displayed.
2. Select Fish so that On is highlighted.
3. Select Fish Sensitivity.
The sh sensitivity numeric adjust control is
displayed.
4. Adjust the sh sensitivity to the require value.
The greater the sh alarm sensitivity, the greater
the number of target image depths displayed.
5. Select Fish Depth Limits so that On is
highlighted.
The shallow and deep sh limit settings will be
activated in the menu.
6. Select Shallow Fish Limit.
The shallow sh limit numeric adjust control is
displayed.
7. Adjust the value to the require setting.
8. Select OK to conrm the new value and close the
numeric adjust control.
9. Select Deep Fish Limit.
The deep sh limit numeric adjust control is
displayed.
10.Adjust the value to the require setting.
11. Select OK to conrm the new value and close the
numeric adjust control.
Setting up Fishing — deep alarm
From the Alarms menu homescreen > Set-up >
Alarms > General Alarms:
1. Select Fishing — Deep water arrival.
2. Select Enable so that a tick is placed in the check
box.
3. Select Deep Limit.
4. Adjust the setting to the required value.
5. Select Back or OK to conrm the new value and
close the numeric adjust control.
Note: The Deep Limit cannot be set to less than
the Shallow Limit.
Setting up Fishing — shallow alarm
From the Alarms menu homescreen > Set-up >
Alarms > General alarms:
1. Select Fishing — Shallow water arrival.
Sonar (Fishnder) application
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