Garmin GMA 350c Handbuch
GMA 350/350c
pilot’s guide
Table of Contents
Garmin GMA 350/350c Pilot’s Guide
Controls................................................................................................................ 7
Features and Operation.................................................................................... 11
Power-UP............................................................................................................11
Mono/Stereo Headsets .....................................................................................12
Transceivers .......................................................................................................12
Enabling/Disabling Monitored COM Muting...........................................................12
Split-COM Mode ...................................................................................................13
Transmit Indications ..............................................................................................14
Receivers............................................................................................................14
Marker Beacon Receiver ........................................................................................15
Intercom System (ICS) ......................................................................................16
Copilot Configured as Crew or Passenger ..............................................................17
Intercom MODES...................................................................................................17
Intercom Volume and Squelch................................................................................22
Speaker.................................................................................................................24
3D Audio............................................................................................................. 25
Clearance Recorder and Player........................................................................27
Voice Recognition ............................................................................................. 28
Entertainment Inputs ....................................................................................... 34
Telephone and Entertainment Muting ....................................................................34
Bluetooth®(GMA 350COnly) ............................................................................35
Pairing a Bluetooth Device with the GMA 350C......................................................35
Assigning an Audio Source to the Bluetooth Device................................................35
Additional Bluetooth Control Functions .................................................................36
Connecting Bluetooth to a Garmin VIRB ................................................................36
Bluetooth®Recording Mode..................................................................................37
Fail-Safe Operation........................................................................................... 37
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
8
GMA 350/350c Audio Panel
CONTROLS
GMA 350 Controls
21
14 15 1712 1311 19 20
1816
10
8642 3 5 7 9
1
GMA 350c (Bluetooth
®
) Controls
22 24 25
26
23
NOTE: When a key is selected, a triangular annunciator above the key is
illuminated.
1
MKR/MUTE
– Selects marker beacon receiver audio. Mutes the
currently received marker beacon receiver audio. Deactivates
automatically and marker beacon audio is heard when the next marker
beacon signal is received. Also, stops play of recorded COM audio.
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
9
GMA 350/350c Audio Panel
2
COM1
– When selected, audio from the #1 COM receiver can be
heard. Press and hold to enable/disable monitored COM muting
during primary COM reception.
3
COM2
– When selected, audio from the #2 COM receiver can be
heard. Press and hold to enable/disable monitored COM muting
during primary COM reception.
4
NAV1
– When selected, audio from the #1 NAV receiver can be heard.
5
NAV2
– When selected, audio from the #2 NAV receiver can be heard.
6
– Selects and deselects audio from a telephone or entertainment
device connected to the Front Panel Jack. Audio from a telephone
connected to the rear of the audio panel is used if a device is not
connected to the Front Panel Jack. Press and hold to enable/disable
muting during reception.
7
MUS1
– Selects and deselects music entertainment audio. Press and
hold to enable/disable MUS1 muting during reception.
8
MUS2
– Selects and deselects music entertainment audio. Press and
hold to enable/disable MUS2 muting during reception.
9
MAN SQ – Manual Squelch annunciator. When lit, squelch is
controlled manually.
10
Volume Indicator
– Indicates volume/squelch setting relative to full
scale.
11
Front Panel Jack
– Used for an entertainment or telephone input.
12
MIC1
– Selects the #1 transmitter for transmitting. COM1 receive
is simultaneously selected when this key is pressed allowing received
audio from the #1 COM receiver to be heard. COM2 receive can be
added by pressing the COM2 Key. Selection of a second MIC button
initiates Split-COM mode. When in Split-COM mode, the pilot is
using COM1, the copilot is using the COM2.
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
10
GMA 350/350c Audio Panel
13
MIC2
– Selects the #2 transmitter for transmitting. COM2 receive
is simultaneously selected when this key is pressed allowing received
audio from the #2 COM receiver to be heard. COM1 receive can be
added by pressing the COM1 Key. Selection of a second MIC button
initiates Split-COM mode. When in Split-COM mode, the pilot is
using COM1, the copilot is using the COM2.
14
PLAY
– Press once to play the latest recorded memory block. Press
while audio is playing begins playing the previously recorded memory
block. Each subsequent press thereafter plays the previous block of
memory.
15
AUX
– When selected, audio from the AUX inputs can be heard.
16
PILOT
– Controls the pilot intercom system. Press and hold to toggle
3D Audio on/off for all headset positions.
17
COPLT
– Controls the copilot intercom system. Press and hold to
toggle copilot configuration between crew and passenger.
18
PASS
– Controls the passenger intercom system. Press and hold to
enable/disable passenger muting during reception.
19
SPKR
– Selects and deselects the cabin speaker. COM, NAV, AUX, and
MKR receiver audio can be heard on the speaker. Press and hold for 2
seconds for Passenger Address (PA). The SPKR key flashes during PA.
20
Cursor (CRSR) Control Knob
– Turn to move the cursor (flashing
white or blue annunciator) to the desired source.
21
Volume (VOL) Control Knob
– Turn the smaller knob to control
volume or squelch of the selected source (indicated by the flashing
white or blue annunciator). When the volume control cursor is not
active press to switch to Blue-Select mode. If the volume control cursor
is active, press twice (once to cancel the cursor, twice to activate Blue-
Select mode).
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
11
GMA 350/350c Audio Panel
22
Bluetooth®Connection Annunciator
– (GMA 350c only) A flashing
blue annunciator indicates the unit is discoverable. A solid blue
annunciator indicates an active Bluetooth connection.
23
Key Annunciator
– (GMA 350c only) Assigns the Bluetooth device
to the audio source. Press the key until the annunciator turns
blue. The key annunciator will cycle from OFF to WHITE to BLUE.
WHITE selects the wired audio source and BLUE selects the Bluetooth
audio source. NOTE: The Bluetooth audio can only be assigned to
one source at a time. Once the Bluetooth audio is assigned to an audio
source, the remaining entertainment audio sources will only cycle
between OFF and WHITE.
24
MUS1 Key Annunciator
– (GMA 350c only) Assigns the Bluetooth
device to the MUS1 audio source. Press the MUS1 key until the
annunciator turns blue. The key annunciator will cycle from OFF to
WHITE to BLUE. WHITE selects the wired audio source and BLUE
selects the Bluetooth audio source. NOTE: The Bluetooth audio can
only be assigned to one source at a time. Once the Bluetooth audio
is assigned to an audio source, the remaining entertainment audio
sources will only cycle between OFF and WHITE.
25
MUS2 Key Annunciator
– (GMA 350c only) Assigns the Bluetooth
device to the MUS2 audio source. Press the MUS2 key until the
annunciator turns blue. The key annunciator will cycle from OFF to
WHITE to BLUE. WHITE selects the wired audio source and BLUE
selects the Bluetooth audio source. NOTE: The Bluetooth audio can
only be assigned to one source at a time. Once the Bluetooth audio
is assigned to an audio source, the remaining entertainment audio
sources will only cycle between OFF and WHITE.
26
Control Knob
Press and Hold
– (GMA 350c only) Press and hold
for two seconds to enable the GMA 350c as discoverable for pairing.
The Bluetooth Annunciator will flash to indicate that the unit is
discoverable. The unit will remain discoverable for 90 seconds or until
a successful pair is established. Once a successful pair is established,
the audio “Bluetooth paired” is played.
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
12
GMA 350/350c Audio Panel
FEATURES AND OPERATION
The GMA 350/350c Audio Panel provides the traditional audio selector
functions of microphone and receiver audio selection. The Audio Panel
includes an intercom system (ICS), a marker beacon receiver, and a COM
clearance recorder. Ambient noise from the aircraft radios is reduced by
Avionics Squelch (ASQ). When no audio is detected, ASQ processing further
reduces the amount of background noise. The MAN SQ Key toggles between
manual and automatic intercom system (ICS) squelch. In automatic ICS
squelch mode, threshold adjustments are handled automatically by the
system. In manual ICS squelch mode, individual threshold adjustments can
be made for the pilot, copilot, and passenger microphones by the crew. The
ability to adjust individual thresholds for each ICS position further reduces
the amount of background noise from the radios.
Pushbutton keys control audio selection. When a key is selected, a triangular
annunciator above the key is illuminated. Annunciator brightness is adjusted
automatically by photocell dimming. Key brightness is adjusted by the radio
dimming bus control. Three Aux inputs are available for additional avionics
or audio devices.
Upon installation, the unit may be configured in various ways depending
on aircraft type and the needs of the pilot.
POWER-UP
The GMA 350/350c performs a self-test during power-up. During the
self-test all Audio Panel annunciator lights illuminate for approximately two
seconds. Once the self-test is completed, most of the settings are restored to
those in use before the unit was last turned off.
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
13
GMA 350/350c Audio Panel
MONO/STEREO HEADSETS
Stereo headsets are recommended when using the GMA 350/350c. Using
a monaural headset in a stereo jack shorts the right headset channel output
to ground. While this does not damage the Audio Panel, a person listening
on a monaural headset hears only the left channel in both ears. If a monaural
headset is used at one of the passenger positions, any other passenger using
a stereo headset hears audio in the left ear only.
TRANSCEIVERS
NOTE: Transceiver functions may also be accessed via Voice Recognition
commands. Refer to the Voice Recognition section for more information.
Audio from the #1 or #2 COM receiver can be selected independently by
pressing the respective Key(s) (COM1 or COM2).
Pressing MIC1 or MIC2 selects the #1 or #2 transmitter and simultaneously
selects the related COM receiver (COM1 or COM2) allowing received
audio to be heard. The other COM receiver can be added by pressing the
respective key. During reception of audio from the COM radio selected for
transmission, audio from the other COM radio is muted.
ENABLING/DISABLING MONITORED COM MUTING
Press and hold COM1 or COM2 to enable/disable monitored COM
muting during reception of audio from the COM radio selected for
transmission. The aural message “Monitor Mute Enabled/Disabled”
is heard.
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
14
GMA 350/350c Audio Panel
SPLIT-COM MODE
NOTE: Split COM performance is affected by the distance between
the COM antennas and the separation of the tuned frequencies. If the
selected COM frequencies are too close together, interference may be
heard during transmission on the other radio.
During Split-COM operation, both the pilot and the copilot can transmit
simultaneously over separate radios.
Pressing both MIC Keys simultaneously initiates Split-COM Mode
(i.e., COM1/COM2). The respective COM1/MIC1 or COM2/MIC2
annunciators are illuminated indicating Split-COM operation. Split-COM
operation is cancelled by pressing one of the selected MIC Keys again.
In Split-COM mode, the pilot uses COM1 and the copilot uses COM2.
COM2 Radio is Selected
Selecting a COM Radio for Transmit
190-01134-12 Rev. K
Garmin GMA 350/350c Pilot’s Guide
15
GMA 350/350c Audio Panel
TRANSMIT INDICATIONS
During COM transmission, the active transceiver (MIC1 or MIC2) Key
Annunciator flashes approximately once per second.
During Split-COM transmission, the MIC1 annunciator flashes when
the pilot’s microphone PTT is pressed. The MIC2 annunciator flashes
when the copilot’s microphone PTT is pressed.
COM Radio Transmit Indication
Annunciator
Flashes During
Transmission
RECEIVERS
NOTE: Receiver functions may also be accessed via Voice Recognition
commands. Refer to the Voice Recognition section for more information.
Pressing the NAV1 and/or NAV2 Key(s) selects/deselects the receiver
audio for the corresponding navigation radio source. The selected audio
source can be heard over the headset and the speaker (if selected). All
radios can be selected individually or simultaneously.
Selecting a NAV Radio Receiver
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