Garmin GPSMAP A12 Owner's Manual

Also see for GPSMAP 7400 Series: Owner's manual Owner's manual Installation insrtuctions Owner's manual Installation instructions

Contents

Garmin GPSMAP A12 Owner's Manual Manual pdf 39 page image

which the transducer is mounted results in a more accuratevisual presentation of what is in the water.Bow Offset: Sets the distance between the bow and the forwardview Panoptix transducer installation location. This allowsyou to view the forward distance from the bow instead of thetransducer location.This applies to Panoptix transducers in the FrontVü, LiveVüForward, and RealVü 3D Forward sonar views.Beam Width: Sets the width of the down view Panoptixtransducer beam. Narrow beam widths allow you to seedeeper and farther. Wider beam widths allow you to seemore coverage area.This applies to Panoptix transducers in the FrontVü, LiveVüDown, and LiveVü Forward sonar views.Use AHRS: Enables the internal attitude heading and referencesystem (AHRS) sensors to detect the installation angle of thePanoptix transducer automatically. When this setting isturned off, you can enter the specific installation angle for thetransducer using the Pitch Angle setting. Many forward viewtransducers are installed at a 45-degree angle and downview transducers are installed at a zero-degree angle.Flipped: Sets the orientation of the Panoptix sonar view whenthe down view transducer is installed with the cables pointingtoward the port side of the boat.This applies to Panoptix transducers in the LiveVü Down,RealVü 3D Down, and RealVü 3D Historical sonar views.Calibrate Compass: Calibrates the internal compass in thePanoptix transducer (Calibrating the Compass, page 31).This applies to Panoptix transducers with an internalcompass, such as the PS21-TR transducer.Orientation: Controls if the transducer is in down or forwardinstallation mode. The Auto setting uses the AHRS sensor todetermine the orientation.This applies to PS22 and LiveScope transducers.Focus: Adjusts the sonar view to compensate for the speed ofsound in water. The Auto setting uses the temperature of thewater to calculate the speed of sound.This applies to LiveScope transducers.Restore Sonar Defaults: Restores the sonar settings to thefactory default values.Setting the Bow OffsetFor forward view Panoptix transducers, you can enter a bowoffset to compensate the forward distance readings for thetransducer installation location. This allows you to view theforward distance from the bow instead of the transducerinstallation location.This feature applies to Panoptix transducers in the FrontVü,LiveVü Forward, and RealVü 3D Forward sonar views.1 Measure the horizontal distance from the transducer to thebow.2 From an applicable sonar view, select Menu > Sonar Setup> Installation > Bow Offset.3 Enter the distance measured, and select Done.On the applicable sonar view, the forward range shifts by thedistance you entered.Calibrating the CompassBefore you can calibrate the compass, the transducer must beinstalled on the shaft far enough away from the trolling motor toavoid magnetic interference, and deployed in the water.Calibration must be of sufficient quality to enable the internalcompass.NOTE: To use the compass, you must mount the transducer onthe transom or the trolling motor shaft. The compass may notwork when you mount the transducer on the motor.NOTE: For best results, you should use a heading sensor suchas the SteadyCast™ heading sensor. The heading sensor showsthe direction the transducer is pointing relative to the boat.NOTE: Compass calibration is available only for transducerswith an internal compass, such as the PS21-TR transducer.You can begin turning your boat before calibrating, but you mustfully rotate your boat 1.5 times during calibration.1 From an applicable sonar view, select Menu > 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.RadarWARNINGThe marine radar transmits microwave energy that has thepotential to be harmful to humans and animals. Beforebeginning radar transmission, verify that the area around theradar is clear. The radar transmits a beam approximately 12°above and below a line extending horizontally from the center ofthe radar.When the radar is transmitting, do not look directly at theantenna at close range; eyes are the most sensitive part of thebody to electromagnetic energy.When you connect your compatible chartplotter to an optionalGarmin marine radar, such as a GMR™ Fantom™ 6 radar or aGMR 24 xHD, you can view more information about yoursurroundings.The radar transmits a narrow beam of microwave energy as itrotates to a 360° pattern. When the transmitted energy contactsa target, some of that energy is reflected back to the radar.Radar 31