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Garmin LiveScope Calibration Considerations

The LiveScope™ live sonar transducer has a built-in AHRS (Attitude Heading Reference System), a feature which is enabled by default. For optimal performance, calibration is recommended to either be enabled and calibrated or disabled.

If the AHRS is out of calibration, the imagery may bounce or rock back and forth until calibrated. If a source of interference is causing this behavior, the calibration may fail. The transducer or the source of EMI may need to be relocated; otherwise the AHRS sensor may need to be turned off. For more information on this see the Table of Contents section below.

AHRS offers the following benefits:

  • Used for image stabilization

  • Serves to show the direction of the transducer when used with a heading sensor

  • Results in a more accurate placement of marked waypoints from the sonar page

NOTE: Current models will display this feature as Auto Stabilize. Discontinued models will display this feature as Use AHRS.
NOTE: The MSC™ 10 marine satellite compass does not work with the LiveScope™ live sonar view for showing which direction the transducer is facing.


Table of Contents:


Trolling Motor Considerations

Garmin Force® trolling motors and Garmin Force® Kraken trolling motors have a feature referred to as anchor lock. Some third-party trolling motors may have a similar feature. This feature rotates the trolling motor shaft and spins the propeller to keep the boat in the same relative location in response to wind, current and movement on the boat. The following provides guidance for AHRS or Auto Stabilize on trolling motors.


AHRS or Auto Stabilize on Garmin Force® trolling motor & Garmin Force® Kraken trolling motor:

  • There is no need to disable AHRS or Auto Stabilize on Garmin Force® trolling motors or Garmin Force® Kraken trolling motors as they are equipped with a brushless motor that does not interfere the AHRS or Stabilization system


AHRS or Auto Stabilize on third-party trolling motor:

  • If installed on the shaft and not performing optimally set Use AHRS or Auto Stabilize to off

  • If installed on the barrel set Use AHRS or Auto Stabilize to off


NOTE: With Anchor Lock or features like it being in use on a 3rd party trolling motor, a LiveScope™ live sonar transducer mounted to a trolling motor shaft or barrel will point whichever direction the trolling motor is rotated; which is not necessarily in the preferred direction of the fish and or structure. Garmin® does not manufacture a pole mount solution for use on marine vessels.


Calibration Considerations

Additional LiveScope™ live sonar Calibration Information

  • Only one calibration is present at any given time and it is stored as a Forward OR Down OR Perspective calibration

  • Calibration is not lost when orienting from Down to Forward or vice versa

    • Examples and facts:

      • When the transducer is in Down mode it is calibrated for Down mode

      • If the transducer is changed to Forward mode, Down mode is still calibrated and will be there if switched back

      • The downside is that Forward mode would not be calibrated unless the calibration procedure is performed

      • If calibrated for Forward mode, the Down calibration is lost

  • Calibration is lost when switching from Forward or Down to Perspective and vice versa


Calibrating the AHRS Sensor

To calibrate the built-in AHRS sensor of the LiveScope™ live sonar transducer, navigate to the applicable LiveScope™ live sonar page:

  • select Options  > Sonar Setup > Installation > Calibrate Compass, then follow the instructions on the screen

    • The transducer must be in the water to calibrate

    • If planning to use on a boat, it is strongly recommended to calibrate from a boat. 

    • If using as a part of an Ice Fishing bundle, the transducer can be calibrated by rotating the pole mount by hand when following on-screen instructions.  

    • Do not attempt to calibrate when the transducer is mounted to a trolling motor barrel

When calibrated, the chartplotter will display a boat icon in the upper right corner of the LiveScope™ live sonar sonar view, which indicates the direction of the sonar beam.


For more information on the boat icon feature see LiveScope Beam Icon with Beam Overlay.


Correcting Flipped LiveScope™ Live Sonar Returns

If the LiveScope™ live sonar image appears to be flipped, and the above is taken in to account, it may be necessary to navigate to the applicable LiveScope™ live sonar view and set Use AHRS or Auto Stabilize to off.

On current model compatible and equipped chartplotters:

  • Select Menu > Sonar Setup > Installation > Auto Stabilize (set to off) > Flipped (change if returns appear to be reverse)

On discontinued compatible and equipped chartplotters:

  • Select Menu > Sonar Setup > Installation > Use AHRS (set to off) > Flipped (change if returns appear to be reverse)


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