
Garmin G1000 Cockpit Reference Guide for the DA42
5-2
SECTION 5 – AUDIO PANEL
5.1 COM RADIO SELECTION
Pressing the COM1 MIC or COM2 MIC Key selects
the active transmitter (i.e., microphone). The associated
receiver audio (COM1 or COM2) also becomes selected
when the COM MIC Key is pressed.
To prevent deselecting the desired received audio
when pressing another COM MIC Key, press the already
selected COM1 or COM2 Key before pressing the other
COM MIC Key.
Figure 5-2 Transceivers
5.2 SPLIT COM FUNCTION (NOT
RECOMMENDED ON THE DA42)
NOTE
: Split COM performance is affected by
the distance between the antennas and the
separation of the tuned frequencies.
Figure 5-3 Split COM Function
Pressing the COM 1/2 Key selects and deselects the
split COM function. During split COM operation, the
COM1, COM1 MIC, COM2, and COM2 MIC Keys are
active.
When the COM 1/2 Key is selected, COM1 is used by
the pilot for transmission and COM2 is used by the copi
-
lot. The COM1 MIC annunciator blinks when the pilot’s
Push-to-talk is pressed, and the COM2 MIC annunciator
blinks when the copilot’s Push-to-talk is pressed.
In this mode, both the pilot and the copilot can trans
-
mit simultaneously over separate radios. The pilot can
still monitor NAV1, NAV2, and MKR audio as selected,
but the copilot is only able to monitor COM2.
5.3 MARKER BEACON RECEIVER
The marker beacon receiver is always ON. Figure 5-4
shows the marker beacon annunciators on the PFD
Figure 5-4 Marker Beacon Signal Indicator Lights on the PFD
Inner Marker
Annunciator
Outer Marker
Annunciator
Middle Marker
Annunciator
When the MKR/MUTE Key is pressed, the key
annunciator is lit and the audio tone can be heard over
the speaker or headsets during marker reception.
When the tone is active, pressing the
MKR/MUTE Key
mutes the audio but does not affect the annunciator. The
audio returns when the next marker signal is received.
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