Calibrating the Compass
Before you can calibrate the compass, the transducer must be installed on the shaft far enough away from the
trolling motor to avoid magnetic interference, and deployed in the water. Calibration must be of sufficient quality
to enable the internal compass.
NOTE: To use the compass, you must mount the transducer on the transom or the trolling motor shaft. The
compass may not work when you mount the transducer on the motor.
NOTE: For best results, you should use a heading sensor such as the SteadyCast
™
heading sensor. The heading
sensor shows the direction the transducer is pointing relative to the boat.
NOTE: Compass calibration is available only for transducers with an internal compass, such as the PS21-TR
transducer.
You can begin turning your boat before calibrating, but you must fully rotate your boat 1.5 times during
calibration.
1 From an applicable sonar view, select Options > Sonar Setup > Installation.
2 If necessary, select Use AHRS to turn on the AHRS sensor.
3 Select Calibrate Compass.
4 Follow the on-screen instructions.
LiveScope and Perspective Sonar Settings
From the LiveScope or Perspective sonar view, select Options.
Gain: Controls the level of detail and noise shown on the sonar screen.
If you want to see the highest intensity signal returns on the screen, you can lower the gain to remove lower
intensity returns and noise. If you want to see all return information, you can increase the gain to see more
information on the screen. Increasing the gain also increases noise, and can make it more difficult to
recognize actual returns.
Depth Range: Adjusts the range of the depth scale.
Allowing the device to adjust the range automatically keeps the bottom within the lower portion of the sonar
screen, and can be useful for tracking a bottom that has minimal or moderate terrain changes.
Manually adjusting the range enables you to view a specified range, which can be useful for tracking a
bottom that has large terrain changes, such as a drop-offs or cliffs. The bottom can appear on the screen as
long as it appears within the range you have set.
Available in LiveScope sonar view.
Forward Range: Adjusts the range of the forward scale.
Allowing the device to adjust the range automatically adjusts the forward scale in relation to the depth.
Manually adjusting the range enables you to view a specified range. The bottom can appear on the screen as
long as it appears within the range you have set.
Available in LiveScope sonar view.
Range: Adjusts the range.
Allowing the device to adjust the range automatically keeps the bottom within the lower or outer third of the
sonar screen, and can be useful for tracking a bottom that has minimal or moderate terrain changes.
Manually adjusting the range enables you to view a specified range, which can be useful for tracking a
bottom that has large terrain changes, such as a drop-offs or cliffs. The bottom can appear on the screen as
long as it appears within the range you have set.
Available in Perspective sonar view.
Transmit: Stops the active transducer from transmitting.
Sonar Setup: Adjusts the setup of the transducer and the appearance of the sonar returns (LiveScope and
Perspective Sonar Setup, page 93).
Edit Overlays: Adjusts the data shown on the screen (Customizing the Data Overlays, page 18).
92 Sonar Fishfinder
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