
190-00592-00 Rev. A
Garmin G1000 Pilot’s Guide for the Diamond DA40
3-6
NAV/COM
3.2 COM OPERATION
FREQUENCY SPACING
The G1000 COM radios can tune either 25 kHz spacing
(118.000 to 136.975 MHz) or 8.33 kHz spacing (118.000
to 136.990 MHz) for 760-channel or 3040-channel
configuration.
COM channel spacing is configured through the MFD
on the System Setup Page of the AUX Page group.
AUTOMATIC SQUELCH
Automatic squelch quiets unwanted static noise when
no audio signal is received, while still providing reasonable
sensitivity to weak COM signals. To disable auto squelch,
press the
VOL/PUSH SQ
knob.
When automatic squelch is disabled, COM audio
reception is always on. Continuous static noise is heard
over the speaker and phones, and an RX indication
appears on the display.
Figure 3-11 Overriding Automatic Squelch
To enable automatic squelch, press the
VOL/PUSH
SQ
knob again.
SELECTING A COM RADIO
The desired COM radio is selected using the
COM
MIC
keys on the audio panel. When the
COM MIC
key
is annunciated, the corresponding active COM frequency
is displayed in green in the COM Frequency window.
Figure 3-12 Selecting a COM Radio
COM radio selection is
performed via the audio
panel.
Top portion of the
audio panel
NOTE:
When PA mode is selected on the audio
panel, the COM MIC annunciator is no longer lit
and the active COM frequency changes to white,
indicating that there is no COM activity.
NOTE:
Refer to the Audio Panel section for more
details on transceiver selection.
Содержание G1000 Series
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