Garmin G3X Touch Pilot's Manual page 131

From the Main Menu, touch Audio Panel.
2) Touch the Radios tab if needed.
3) Touch the Split COM button to select (green) or deselect Split COM mode.
COM RADIOS
The COM 1/COM 2 buttons select the monitored radio. The COM 1 MIC/COM 2 MIC
buttons selects the radio used to transmit from.
Selecting "Split COM" overrides the current MIC/COM selections and enables MIC1/
COM1 for the pilot, and MIC2/COM2 for the copilot (i.e., "Split COM" isolates the
COM 1 radio to the pilot and the COM 2 radio to the copilot).
MARKER BEACON
The marker beacon receiver is used as part of the ILS. The marker beacon receiver
is always on and detects any marker beacon signals within the reception range of the
aircraft. The receiver detects the three tones - outer, middle, and inner - and illuminates
the marker beacon annunciations located to the left of the altimeter on the PFD.
Touch Marker Beacon on the Audio/Intercom Page (Radios Tab) to select/deselect
the marker beacon audio. The Marker Beacon Button annunciator indicates when
marker beacon audio is selected.
NOTE: The Speaker Button is moved under 'More Options...' when both
Marker Beacon and Speaker are enabled.
190-02472-00 Rev. D
Marker Beacon Audio
Garmin G3X Touch ™ Pilot's Guide for Certified Aircraft
CNS Interface
Marker
Beacon Audio
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