4-32GTN 625/635/650 Pilot’s Guide 190-01004-03 Rev. PForewordGettingStartedAudio &Xpdr CtrlCom/NavFPLDirect-ToProcWpt InfoMapTrafficTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndex4.3.4 Temperature Compensated AltitudeNOTE: GTNs and TXi displays use only one destination airport temperaturefor calculating compensated altitudes. Changing the temperature on oneof these units automatically recalculates the value across all connectedGTNs and GDUs.A temperature compensation function calculates loaded approach altitudesbased on the pilot-specified destination temperature. Once the pilot enters adestination temperature, the system increases the approach altitudes accordingly.4.3.4.1 Temperature Compensation Requirements• A destination airport is present in the active flight plan• GDU 700( )/1060 for access via PFD Minimums menu4.3.4.2 Setting Temperature Compensated AltitudeTemperature compensation controls are accessible from two locations:• Destination Temperature Compensation window• Minimums menu (PFD only)UncompensatedFAF AltitudeTouch toEnable/DisableTemperatureCompensationTouch to EnterDestinationTemperatureSnowflake IconIndicates TemperatureCompensated FAFAltitude.Figure 4-49 Destination Temperature Compensation WindowTo activate temperature compensated altitude:1. While viewing the Active Flight Plan page, touch Menu.2. Touch TEMP COMP. The Destination TemperatureCompensation pop-up opens.3. Touch Temperature Compensation.4. Touch TEMP at DEST and specify the destination airporttemperature.The temperature compensated FAF altitude displays in magenta.
