15-15190-01004-03 Rev. K Garmin GTN 625/635/650 Pilot’s GuideForewordGettingStartedAudio &Xpdr CtrlCom/NavFPLDirect-ToProcWpt InfoMapTrafficTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndex15.2 GPS Status15.2.1 GPS Status PageThe GPS Status Page provides a visual reference of GPS receiver functions,including current satellite coverage, GPS receiver status, position accuracy, anddisplays your present position (in latitude and longitude) and altitude.The Satellite Status Page is helpful in troubleshooting weak (or missing) signallevels due to poor satellite coverage or installation problems. You may wish torefer to this page occasionally to monitor GPS receiver performance and establisha normal pattern for system operation. Should problems occur at a later date, youmay find it helpful to have an established baseline from which to compare.1. While viewing the System page, touch GPS Status.GPS Receiver StatusSky Viewof satellitepositionsSignal StrengthBars Satellite NumbersHorizontal Figureof MeritEstimated PositionUncertaintyVertical Figure ofMeritHorizontal Dilutionof PrecisionAcquiringSatellite, notready for useSatelliteacquiredand used forposition fix Satellite acquired,used for position fix,and has differentialcorrectionsLat/Lon PositionPhase of FlightTrackedSatellite,not usedTouch To SelectSBAS ProviderFigure 15-19 GPS Status Page2. If desired, touch the SBAS key to select an SBAS provider. TheSBAS list is based on the Aviation database. See theSatellite-Based Augmentation System section later in this section fordetails.3. Touch the Back key to return to the System Status page.
