190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
108
AUDIO PANEL AND CNS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
AUTOMATIC SQUELCH
Automatic Squelch quiets unwanted static noise when no audio signal is received, while still providing good
sensitivity to weak COM signals. To disable Automatic Squelch, press the
VOL/SQ
Knob. When Automatic
Squelch is disabled, COM audio reception is always on. Continuous static noise is heard over the headsets and
speaker, if selected. Pressing the
VOL/SQ
Knob again enables Automatic Squelch.
WhenAutomaticSquelchisdisabled,awhiteSQappearsnexttotheCOMfrequency.
Figure 4-15 Overriding Automatic Squelch
Squelch
Indication
Press the COM
VOL/
SQ
Knob to turn off
Automatic Squelch.
Press again to restore
Automatic Squelch.
VOLUME
COM radio volume level can be adjusted from 0 to 100% using the
VOL/SQ
Knob. Turning the knob
clockwise increases volume, turning the knob counterclockwise decreases volume. When adjusting volume,
the level is displayed in place of the standby frequencies. Volume level indication remains for two seconds after
the change.
Figure 4-16 COM Volume Level
COM Volume
Level Remains for
Two Seconds