3-1190-01004-03 Rev. F Garmin GTN 625/635/650 Pilot’s GuideForewordGettingStartedXpdr CtrlCom/NavFPLDirect-ToProcWpt InfoMapTrafflcTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndex3 NAV/COM(GTN 650 NAV/COM AND GTN 635 COM ONLY)The GTN 650 features a digitally-tuned VHF Com radio and digitally-tunedNav/localizer and glideslope receivers. The GTN 635 has a Com radio only. TheCom radio operates in the aviation voice band, from 118.000 to 136.975 MHz,in 25 kHz steps (default). For European operations, a Com radio configurationof 8.33 kHz steps is also available.Large and Small Knobs(Frequency Adjust).Press to Toggle Comand Nav Functions.Volume andSquelchOn/Off KnobActive Com FrequencyStandby Com FrequencyCom StandbyEditing WindowFrequency MonitorAnnunciationBackspace KeyFrequencyMonitor KeyFrequencyTransfer(Flip/Flop)KeyFindFrequencyKeyEnter KeyNumeric KeypadFigure 3-1 Nav/Com ControlsXferRecentNearest - Filter - Com - NavFlight PlanUserMonitor KeypadFindAirportVORAirportFSSARTCCFigure 3-2 Nav/Com Functional Diagram
