1-16GTN 725/750 Pilot’s Guide 190-01007-03 Rev. CForewordGettingStartedAudio &Xpdr CtrlCom/NavFPLDirect-ToProcChartsWpt InfoMapTrafflcTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndex1.7 Selecting Com/Nav FrequenciesLarge andSmall Knobs(FrequencyAdjust)Volume andSquelchActive Com FrequencyStandby ComFrequencyActive Nav FrequencyStandby Nav FrequencyCom StandbyEditing WindowFrequency MonitorAnnunciationStandbyFrequencyBackspaceKeyStandby FrequencyMonitor KeyFrequencyTransfer(Flip/Flop)KeyFind FrequencyKeyEnter KeyNumeric KeypadFigure 1-20 Com Radio Frequency Selection PageTo switch between Com and Nav frequency selectionTuning control normally remains in the Com window and will return after 30seconds of inactivity. If you wish to select a VOR/localizer/ILS frequency, pressthe small right knob momentarily to make the Nav window active for editing.The Standby Nav frequency will be highlighted briefly to indicate that it is activefor editing. The standby frequency in blue is active for editing by the large andsmall right knobs.Method 1: Select a Nav/Com frequency using the small and large right rotary knobs1. Turn the large right knob to select the desired megahertz(MHz) value. For example, the “118” portion of the frequency“118.30”.2. Turn the small right knob to select the desired kilohertz(kHz) value. For example, the “.30” portion of the frequency“118.30”.3. Touch the Com or Nav window to flip/flop the Active and Standbyfrequencies. You can also press and hold the small right knobto transfer the standby frequency to the active window.
