G1000 Reference Guide - SkyHoppers

SECTION 5 – AUDIO PANEL5.1 COM RADIO SELECTIONPressing the COM1 MIC or COM2 MIC Key selectsthe active transmitter (i.e., microphone). The associatedreceiver audio (COM1 or COM2) also becomes selectedwhen the COM MIC Key is pressed.To prevent deselecting the desired received audiowhen pressing another COM MIC Key, press the alreadyselected COM1 or COM2 Key before pressing the otherCOM MIC Key.Inner MarkerAnnunciatorOuter MarkerAnnunciatorMiddle MarkerAnnunciatorFigure 5-2 Transceivers5.2 MARKER BEACON RECEIVERThe marker beacon receiver is always on. Only themarker beacon audio can be turned off. Figure 5-3 showsthe marker beacon annunciators on the PFD.When the MKR/MUTE Key is pressed, the keyannunciator is lit and the audio tone can be heard overthe speaker or headsets during marker beacon reception.When the tone is active, pressing the MKR/MUTEKey once mutes the audio but does not affect the markerannunciator. The audio returns when the next markersignal is received.To turn off the marker beacon audio, press the MKR/MUTE Key once when there is no marker indicationpresent, or press twice when an indication is present. Thekey annunciator will be extinguished when the markerbeacon audio is turned off.Figure 5-3 Marker Beacon Annunciators on the PFDMarker Beacon Signal SensitivityThe HI SENS Key can be pressed for increased markerbeacon signal sensitivity.Figure 5-4 Marker Beacon5-2Garmin G1000 Cockpit Reference Guide for the Cessna Nav III190-00384-07 Rev. A