
Garmin G1000 Cockpit Reference Guide for Mooney M20M & M20R
42
SECTION 3 – AUDIO PANEL
The following table summarizes the ICS operation for
the four (4) ICS isolation modes supported by the unit.
ICS Isolation Mode Pilot Hears Copilot Hears Passenger Hears
PILOT
(PILOT LED Lit)
Selected radios; pilot Copilot; passengers; MUSIC 1 Copilot; passengers; MUSIC 1
COPILOT
(COPLT LED Lit)
Selected radios; pilot;
passengers; MUSIC 1
Copilot; MUSIC 2 Selected radios; pilot;
passengers; MUSIC 1
CREW
(Both LEDs Lit)
Selected radios; pilot; copilot;
MUSIC 1
Selected radios; pilot; copilot;
MUSIC 1
Passengers; MUSIC 2
ALL
(Both LEDs OFF)
Selected radios; pilot; copilot;
passengers; MUSIC 1
Selected radios; pilot; copilot;
passengers; MUSIC 1
Selected radios; pilot; copilot;
passengers; MUSIC 1
Table 3-3 ICS Operation Modes
3.6 VOLUME/SQUELCH CONTROL
When the GMA 1347 MAN SQ key is selected, press-
ing the
VOL/SQ knob toggles between volume and
squelch adjustment modes. When the unit is in volume
adjustment mode, the VOL annunciation on the lower
left of the VOL/SQ knob is lit and volume can thus be
adjusted. Similarly, when the unit is in squelch mode, the
SQ annunciation on the lower right of the VOL/SQ knob
is lit and squelch threshold level can thus be adjusted.
NOTE: When the MAN SQ key is deselected (i.e.,
auto-squelch is active), pressing the VOL/SQ
knob has no effect on the VOL/SQ selection state
of the unit and VOL is automatically annunci-
ated.
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