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AUDIO PANEL
INTERCOM VOLUME AND SQUELCH
The MAN SQ key and VOL/SQ knob control the
volume and squelch of the intercom. The MAN SQ key
allows either automatic or manual control of the squelch
setting. The VOL/SQ knob controls volume or manual
squelch adjustment for the pilot and copilot/passenger.
When the MAN SQ annunciator is not lit (auto-squelch
is on), the VOL/SQ knob controls only the volume.
When the MAN SQ annunciator is lit (manual squelch),
the VOL/SQ knob controls both volume and squelch.
Automatic/Manual
Squelch
Pilot
Volume
Figure 5-7 Volume/Squelch Control
Intercom Volume Control
The intercom volume is controlled with the VOL/
SQ knob. The small knob controls the pilot volume.
The large knob controls the copilot/passenger volume.
Turning the knob clockwise increases volume, turning
counterclockwise decreases volume. When squelch is
automatic (MAN SQ annunciator is not lit) and the VOL
annunciator at the bottom of the unit is lit, intercom
volume may be adjusted.
5-8
Intercom Manual Squelch Control
the ambient cockpit noise when no person is talking. Each
microphone input has an automatic squelch threshold.
Manual squelch adjustment is also available if desired.
automatic and manual squelch mode. When in manual
squelch, the MAN SQ annunciator is lit.
either the volume or squelch threshold level.
and squelch adjustment. The annunciator at the bottom of
the unit indicates which function the knob is controlling.
controls pilot squelch threshold. The large VOL/SQ
Copilot
knob controls copilot/passenger squelch threshold.
Turning either knob clockwise increases squelch level,
Squelch
counterclockwise decreases squelch level.
MASTER AVIONICS SQUELCH (MASQ)
noise from the aircraft radios.
detected, MASQ processing further reduces the amount of
background noise from the radios.
Garmin G1000 Pilot's Guide for the Diamond DA40
NOTE: When the MAN SQ key is not lit (auto-
squelch is active), pressing the VOL/SQ knob has
no effect on the VOL/SQ selection.
The intercom squelch function has the ability to quiet
Pressing the MAN SQ key toggles between the
In manual squelch mode the VOL/SQ knob adjusts
Pressing the VOL/SQ knob toggles between volume
In manual squelch mode, the small VOL/SQ knob
MASQ (Master Avionics Squelch) reduces ambient
When no audio is
190-00592-00 Rev. A
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