Garmin echoMAP CHIRP 40 Owner's Manual

Also see for echoMAP CHIRP 70 series: Owner's manual Installation instructions

Contents

RealVü 3D Down Sonar ViewThis sonar view shows a three-dimensional view of what isbelow the transducer and can be used when you are stationaryand want to see what is around your boat.RealVü 3D Historical Sonar ViewThis sonar view provides a three-dimensional view of what isbehind your boat as you are moving and shows the entire watercolumn in 3D, from the bottom to the top of the water. This viewis used for finding fish.À Color legendÁ BoatÂ RangeÃ BottomÄ StructureÅ FishFrontVü Sonar ViewThe Panoptix FrontVü sonar view increases your situationalawareness by showing obstructions under the water, up to91 meters (300 feet) in front of the boat.The ability to effectively avoid forward collisions with FrontVüsonar decreases as your speed rises above 8 knots.To see the FrontVü sonar view, you must install and connect acompatible transducer, such as a PS21 transducer. You mayneed to update the transducer software.Changing the Sonar View1 From a combination screen with sonar, select MENU > EditCombination.2 Select the window to change.3 Select a sonar view.Selecting the Transducer TypeBefore you can select the transducer type, you must know whatkind of transducer you have.This chartplotter is compatible with the Garmin ClearVü™transducer as well as a range of accessory transducersincluding Garmin GT transducers, which are available atwww.garmin.com.If you are connecting a transducer that was not included with thechartplotter, you may need to set the transducer type to makethe sonar function properly. If the device automatically detectedyour transducer, this option does not appear.1 From a sonar view, select MENU > Sonar Setup >Installation > Transducer Type.2 Select an option:• If you have a 200/77 kHz, dual-beam transducer, selectDual Beam (200/77 kHz).• If you have a 200/50 kHz, dual-frequency transducer,select Dual Frequency (200/50 kHz).• If you have another type of transducer, select it from thelist.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 shaft. The compass does not work when you mount thetransducer on the motor.NOTE: Compass calibration is available only for transducerswith an internal compass.You can begin turning your boat before calibrating, but you mustfully rotate your boat 1.5 times during calibration.1 From a ForwardVü or LiveVü Forward sonar page, selectMENU > Sonar Setup > Installation.2 If necessary, select Use AHRS.3 Select Calibrate Compass.4 Follow the on-screen instructions.Creating a Waypoint on the Sonar Screen1 From a sonar view, select Pause Sonar.2 Select a location.3 Select or .4 If necessary, edit the waypoint information.Measuring Distance on the Sonar ScreenYou can measure the distance between two points on theSideVü sonar view.1 From the SideVü sonar view, select a location on the screen.2 Select .A push pin appears on the screen at the selected location.3 Select another location.The distance and angle from the pin is listed in the upper-leftcorner.TIP: To reset the pin and measure from the current location ofthe pin, select .Pausing the Sonar DisplayFrom a sonar view, select MENU > Pause Sonar.Viewing Sonar HistoryYou can scroll the sonar display to view historical sonar data.NOTE: Not all transducers save historical sonar data.1 From a sonar view, select MENU > Pause Sonar.2 Use the arrow keys.Adjusting the Level of DetailYou can control the level of detail and noise shown on the sonarscreen either by adjusting the gain for traditional transducers orby adjusting the brightness for Garmin ClearVü transducers.If you want to see the highest intensity signal returns on thescreen, you can lower the gain or brightness to remove lowerintensity returns and noise. If you want to see all returninformation, you can increase the gain or brightness to see moreinformation on the screen. This also increases noise, and canmake it more difficult to recognize actual returns.18 Sonar