Garmin G3X Touch Pilot’s Guide 190-01754-00 Rev. E24System OverviewSystemOverviewFlightInstrumentsEISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesAFCSAnnun/AlertsAppendixIndex1.7 ACCESSING ADDITIONAL INFORMATIONNOTE: A System Status Message and the word ‘External’ appearing next tothe GPS Status indicates that the display connected to the GPS antenna isunavailable and the remaining display(s) are using the external GPS navigatorfor 2D GPS position data. In this case, the data collected from the externalnavigator is not considered a sufficient source of GPS data by the AHRS.VIEWING GPS RECEIVER STATUSInternal system checking is performed to ensure the GPS receiver is providingaccurate data to the GDU(s).The G3X Touch GDUs can be configured to share GPS information (refer to the G3XTouch Installation Manual for configuration information). For example, a GDU can beconfigured to share its GPS position, velocity, and time data with another GDU. If aGDU is not using its own GPS receiver, the name of the GDU providing the data (i.e.,‘3D GPS Location (PFD)’ or ‘3D GPS Location (MFD)’) is displayed on the INFO Page.The GPS Status will display one of the following conditions:• Autolocate—Receiver is looking for any satellite whose almanac has beencollected, which can take up to 5 minutes• Searching the Sky—Receiver is looking for satellites• Acquiring Satellites—Receiver is looking for and collecting data from satellitesvisible at its last known or initialized location, but has not acquired a fix• 2D GPS Location—At least three satellites have been acquired and a two-dimensional location fix has been calculated. “2D Differential” appears whenyou are receiving DGPS corrections in 2D mode• 3D GPS Location—At least four satellites have been acquired and a three-dimensional fix has been calculated. “3D Differential” appears when you arereceiving DGPS corrections in 3D mode
