Fishfinder Alarms - Raymarine a65 Operation Instructions Manual

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 Fishfinder application menu:
1. Select Sensitivity Settings.
2. Select Color Threshold.
3. Adjust the color threshold to the required value.
4. Select Ok to confirm 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 Fishfinder 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.
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15.19 Fishfinder alarms

The following Fishfinder alarms can be set when a
depth data source is available.
• Fish — alarm sounds when a target meets the
specified sensitivity level and, is within the depth
limits (if enabled).
• Fishfinder Deep — alarm sounds when the
detected depth is greater than the deep limit.
• Fishfinder Shallow — alarm sounds when the
detected depth is less than the shallow limit.
Setting up fish 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 fish sensitivity numeric adjust control is
displayed.
4. Adjust the fish sensitivity to the require value.
The greater the fish 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 fish limit settings will be
activated in the menu.
6. Select Shallow Fish Limit.
The shallow fish limit numeric adjust control is
displayed.
7. Adjust the value to the require setting.
8. Select Ok to confirm the new value and close the
numeric adjust control.
9. Select Deep Fish Limit.
The deep fish limit numeric adjust control is
displayed.
10. Adjust the value to the require setting.
11. Select Ok to confirm the new value and close the
numeric adjust control.
Setting up fishfinder deep alarm
From the Alarms menu homescreen > Set-up >
Alarms:
1. Select Fishfinder Deep.
2. Select Deep so that On is highlighted.
Selecting Deep will switch between On and Off.
3. Select Deep Limit.
The deep limit numeric adjust control is displayed.
4. Adjust the setting to the required value.
5. Select Ok to confirm the new value and close the
numeric adjust control.
Note: The Deep Limit cannot be set to less than
the Shallow Limit.
Setting up fishfinder shallow alarm
From the Alarms menu homescreen > Set-up >
Alarms:
1. Select Fishfinder Shallow.
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