Pilot's Guide

Garmin G1000 Pilot’s Guide for Tiger AG-5B190-00617-00 Rev. A
5-9
OPERATION
INTERCOM VOLUME AND SQUELCH CONTROL
The MAN SQ key and VOL/SQ knob control the vol-
ume and squelch of the intercom. The MAN SQ key al-
lows 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.
Figure 5-7 Volume/Squelch Control
Copilot
Pilot
Automatic/Manual
Squelch
Volume
Squelch
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. Turn-
ing the knob clockwise increases volume, turning counter-
clockwise 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 now
be adjusted.
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.
Intercom Manual Squelch Control
The intercom squelch function has the ability to quiet
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.
Pressing the MAN SQ key toggles between the au
-
tomatic and manual squelch mode. When in manual
squelch, the MAN SQ annunciator is lit.
In manual squelch mode the
VOL/SQ knob adjusts
either the volume or squelch threshold level.
Pressing the
VOL/SQ knob toggles between volume
and squelch adjustment. The annunciator at the bottom
of the unit indicates which function the knob is control-
ling.
In manual squelch mode, the small
VOL/SQ knob
controls pilot squelch threshold. The large
VOL/SQ knob
controls copilot/passenger squelch threshold. Turning
either knob clockwise increases squelch level, counter-
clockwise decreases squelch.
MASTER AVIONICS SQUELCH (MASQ)
MASQ (Master Avionics Squelch) reduces ambient
noise from the aircraft radios. When no audio is detected,
MASQ processing further reduces the amount of back-
ground noise from the radios.
The Master Avionics Squelch (MASQ) threshold level
can be adjusted or disabled by a Garmin-authorized ser
-
vice center.
190-00617-00_05A.indd 9 7/6/2005 3:16:36 PM