GPSMAP 4000 Series Owner’s Manual GettInG StartedGettInGstartedViewing System InformationYou can view your unit’s software version, basemap version, unit ID number, and your XM weatherRadio ID (if available). You may need this information to update the system software or purchaseadditional map data information.From the Home screen, select Configure > System > System Information.Using the Simulator ModeSimulator mode turns the GPS receiver off for use indoors or for practice. The unit does not tracksatellites in simulator mode.CAUTION: Do not try to navigate using simulator mode because the GPS receiver is turned off.Any satellite signal strength bars shown are only simulations and do not represent the strength ofactual satellite signals.To turn on Simulator Mode1. From the Home screen select Configure > System > Simulator.2. Select On to turn the simulator mode on. Select Setup to set speed, track control, position,simulator time, and simulator date.Understanding the Home ScreenUse the Home screen to access all other screens.NOTE: Options on this screen vary based on the unit type.Charts—access Navigation, Mariner’s Eye, Mariner’s Eye 3D, Fish Eye 3D, Fishing Chartsand Radar Overlay charts (page 7).NOTE: Mariner’s Eye 3D, Fish Eye 3D, and Fishing Charts are available only if you use aBlueChart g2 Vision SD card.Radar—setup and view radar (page 43).NOTE: The radar option is available only if you have a Garmin Marine Radar connected.Sonar—access sonar information (page 49).NOTE: The sonar option is available only if you have a Garmin sonar module connected.•••