User Guide

Garmin G1000 Pilot’s Guide for the Beechcraft A36/G36
190-00573-00 Rev. A
6-10
OPERATION
The current ICS isolation mode affects the distribution
of the entertainment inputs MUSIC 1 and MUSIC 2.
NOTE: MUSIC 1 and MUSIC 2 cannot be
completely turned off. Audio level for these
inputs can be set above and below a nominal
value. Contact a Garmin-authorized service
center for adjustment.
MUSIC 1
MUSIC 1 can be heard by the pilot in COPILOT mode
and in ALL mode, and can be heard by the copilot in
PILOT mode and in ALL mode.
MUSIC 1 Muting
MUSIC 1 muting occurs when aircraft radio, marker
beacon or ICS activity is heard. MUSIC 1 is always soft-
muted when an interruption occurs from an aircraft radio.
Soft muting is the gradual return of MUSIC 1 to its original
volume level. The time required for MUSIC 1 volume to
return at the headset outputs is between one-half and four
seconds.
NOTE: MUSIC 1 muting during ICS activity can be
disabled. Contact a Garmin-authorized service
center for details.
NOTE: If the MKR/MUTE key is pressed and
held for three (3) seconds, the GMA 1347 toggles
music muting ON and OFF. When toggling, either
one (1) or two (2) beeps can be heard; one (1)
beep indicates that music muting is enabled, two
(2) beeps indicate music muting is disabled.
MUSIC 2
MUSIC 2 can be heard only by the passengers and is
never muted.
GDL 69/69A XM RADIO SYSTEM
When no external entertainment music is connected
to the audio panel through MUSIC 1 and
MUSIC 2
jacks, audio from the GDL 69A is heard by the pilot and
passengers simultaneously.
Connecting a stereo input to either MUSIC 1 or
MUSIC 2 removes the GDL 69A audio from that input.
For example, if passengers prefer music while the pilot
listens to the GDL 69A, the entertainment audio would be
connected to the MUSIC 2 jack.
Refer to the Optional Equipment Pilot’s Guide (Tab 11)
for more details on the GDL 69/69A.
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
background noise from the radios.
The Master Avionics Squelch (MASQ) threshold level
can be adjusted or disabled by a Garmin-authorized
service center.