Garmin Software Version 0424.01 Guide de l'utilisateur télécharger pdf (Page 57)

Garmin G1000 Cockpit Reference Guide for Mooney M20M & M20R

SECTION 3 – AUDIO PANEL

When transitioning from auto to manual squelch, the

unit “recalls” the previous VOL/SQ selection and sets the

state of the unit accordingly (see table below).

NOTE: The volume and squelch controls for the

COM and NAV radios are located on the PFD

and MFD bezels (please refer to the G1000 VHF

NAV/COM Pilot’s Guide for details).

Intercom VOL/SQ State

Intercom Volume Control

Intercom volume can be controlled via the

VOL/SQ

knob. The small knob controls the pilot ICS volume,

while the large knob controls the copilot/passenger ICS

volume. Turning either knob clockwise increases audio

level. Conversely, turning either knob counterclockwise

decreases audio level. When the MAN SQ key is not an-

nunciated, volume adjustment mode is automatically se-

lected and the VOL annunciation is lit.

To adjust ICS volume when the MAN SQ key

is not annunciated:

1. Turn the appropriate

VOL/SQ

knob.

To adjust ICS volume when the MAN SQ key

is annunciated, perform one of the following

steps:

1a. If the unit is in manual squelch threshold

adjustment mode (i.e., if the

annunciation

at the lower right of the

VOL/SQ

knob is lit),

press the

VOL/SQ

knob to toggle to ICS volume

adjustment mode, and turn the appropriate

VOL/SQ

knob.

1b. If the unit is already in ICS volume adjustment

mode (i.e., if the

VOL

annunciation at the

lower left of the

VOL/SQ

knob is lit), turn the

appropriate

VOL/SQ

knob.

Intercom Squelch Threshold Control

Each microphone input has an automatic squelch

threshold. Manual squelch override as well as keyed

ICS

operation (the latter to be used in noisier cockpit environ-

ments) is also available.

Manual squelch threshold adjustments can be per

formed via the VOL/SQ knob when the MAN SQ key is

annunciated and the

SQ annunciation is lit. The small

VOL/SQ knob controls pilot squelch threshold adjust-

ments, while the large VOL/SQ knob controls copilot/

passenger squelch threshold adjustments. Turning either

knob clockwise increases the squelch threshold level.

Conversely, turning either knob counterclockwise de-

creases the squelch threshold level.

NOTE: In manual squelch mode, all crew audio

inputs can break squelch when the VOL/SQ knob

is adjusted to minimum. When the VOL/SQ knob

is adjusted to maximum, the ICS only produces

audio when the ICS PTT is pressed.

To adjust squelch threshold level manually

if the

MAN SQ

key is not annunciated:

1. Press the

MAN SQ

key and perform one of the

following steps:

2a. If the

VOL

annunciation is lit, press the

VOL/SQ

knob to illuminate the

annunciation, and

turn the

VOL/SQ

knob.

2b. If the

annunciation is already lit, turn the

VOL/SQ

knob.

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Garmin Software Version 0424.01 Guide de l'utilisateur Page 57

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