Master Avionics Squelch (Masq) - Garmin G1000 Pilot's Manual

Audio panel

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Table Of Contents

Table of Contents

Enlarged version

To adjust ICS volume when MAN SQ is OFF

(key not annunciated):

Turn the appropriate VOL/SQ knob.

To adjust ICS volume when MAN SQ is ON

(key annunciated), do one of the following:

1a. If the unit is in manual squelch threshold

adjustment mode (SQ annunciation at the

lower right of the VOL/SQ knob is lit), press the

VOL/SQ knob to toggle to ICS volume adjust-

ment mode, and turn the appropriate VOL/SQ

knob.

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

mode (VOL annunciation at at the lower left

of the VOL/SQ knob is lit), turn the appropriate

VOL/SQ knob.

Intercom Squelch Control

Each microphone input has an automatic squelch

threshold. Manual squelch override as well as keyed ICS

operation (for noisier cockpits) is also available.

The VOL/SQ knob manually adjusts squelch thresh-

old when the MAN SQ key is annunciated and the SQ an-

nunciation is lit. The small VOL/SQ knob controls pilot

squelch threshold and the large VOL/SQ knob controls

copilot/passenger squelch threshold. Turning either knob

clockwise increases the threshold. Turning either knob

counterclockwise decreases the threshold.

NOTE: In manual squelch mode, when the

VOL/SQ knob is adjusted to minimum, all crew

audio inputs can break squelch. When the

VOL/SQ knob is adjusted to maximum, the

ICS audio is heard only when an ICS PTT is

pressed.

190-00378-02 Rev. A

To adjust squelch threshold level manually

when MAN SQ is OFF (key not annunciated):

2a. If the VOL annunciation is lit, press the VOL/SQ

2b. If the SQ annunciation is already lit, turn the

To adjust squelch threshold level manually

when MAN SQ is ON (key annunciated):

1a. If the VOL annunciation is lit, press the VOL/SQ

1b. If the SQ annunciation is already lit, turn the

Volume Adjustments

The audio level of various signals can be adjusted if

desired by a Garmin-authorized service center.