Page 4 - CONTROLS; When a key is selected, a triangular annunciator above the key is
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 4 GMA 350 Audio Panel CONTROLS GMA 350 Controls 21 14 15 17 12 13 11 19 20 18 16 10 8 6 4 2 3 5 7 9 1 NOTE: When a key is selected, a triangular annunciator above the key is illuminated. 1 MKR/MUTE – Selects marker beacon receiver audio. Mutes the cur...
Page 5 - GMA 350 Audio Panel
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 5 GMA 350 Audio Panel 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 J...
Page 7 - FEATURES AND OPERATION; MAN SQ; Key toggles between manual
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 7 GMA 350 Audio Panel FEATURES AND OPERATION The GMA 350 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 c...
Page 8 - TRANSCEIVERS; ENABLING/DISABLING MONITORED COM MUTING; “Monitor Mute Enabled/Disabled”
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 8 GMA 350 Audio Panel MONO/STEREO HEADSETS Stereo headsets are recommended when using the GMA 350. 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 listen...
Page 9 - Split COM performance is affected by the distance between; MIC; Keys simultaneously initiates Split-COM Mode; Selecting a COM Radio for Transmit
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 9 GMA 350 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...
Page 10 - TRANSMIT INDICATIONS; During COM transmission, the active transceiver (MIC1 or MIC2) Key; COM Radio Transmit Indication; RECEIVERS; Receiver functions may also be accessed via Voice Recognition; Selecting a NAV Radio Receiver
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 10 GMA 350 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 P...
Page 11 - MARKER BEACON RECEIVER; the reception range of the aircraft.; Marker Beacon Key & Lamps; Audio; Blue; The GMA 350 provides three states of marker beacon operation On,
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 11 GMA 350 Audio Panel MARKER BEACON RECEIVER The marker beacon receiver detects any marker beacon signal within the reception range of the aircraft. When a marker beacon signal is detected, the lamps illuminate, and an associated keyed-tone is heard ...
Page 12 - Turning Marker Beacon Audio On
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 12 GMA 350 Audio Panel Turning Marker Beacon Audio On With the MKR/MUTE annunciator off, press the MKR/MUTE Key to activate marker beacon audio and illuminate the MKR/MUTE annunciator. Muting Marker Beacon Audio During marker beacon audio reception, p...
Page 13 - Intercom functions may also be accessed via Voice Recognition; Intercom Controls; COPILOT CONFIGURED AS CREW OR PASSENGER; When the copilot position is configured as a passenger, the; COPLT
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 13 GMA 350 Audio Panel INTERCOM SYSTEM (ICS) NOTE: Intercom functions may also be accessed via Voice Recognition commands. Refer to the Voice Recognition section for more information. The GMA 350 includes a six-position intercom system (ICS), two MUSI...
Page 14 - INTERCOM MODES; In the following modes the copilot position is configured as crew.; All Intercom Mode; In ‘All Intercom’ mode the Pilot, Copilot, and Passengers hear each; ICS Keys; PASS; Pilot Isolate Mode; In ‘Pilot Isolate’ mode the Pilot, Copilot, and Passengers hear the
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 14 GMA 350 Audio Panel INTERCOM MODES NOTE: In the following modes the copilot position is configured as crew. NOTE: In the default ICS configuration, only the pilot and copilot positions can hear aircraft alerts. All Intercom Mode In ‘All Intercom’ m...
Page 15 - Passenger/Crew Isolate Mode; In ‘Passenger/Crew Isolate’ mode the Pilot and Copilot hear the
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 15 GMA 350 Audio Panel ICS Keys Mode Operation Aircraft Audio PASS PILOT COPLT Passenger/Crew Isolate Mode In ‘Passenger/Crew Isolate’ mode the Pilot and Copilot hear the aircraft audio and each other. The Passengers hear each other. ICS Keys Mode Ope...
Page 16 - Copilot Isolate Mode; In ‘All Isolate’ mode the Pilot hears the aircraft audio. The Copilot
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 16 GMA 350 Audio Panel Copilot Isolate Mode In ‘Copilot Isolate’ mode the Pilot and Passengers hear the aircraft audio and each other. The Copilot has the option to use Split-COM mode. ICS Keys Mode Operation Aircraft Audio PASS PILOT COPLT Split-COM ...
Page 17 - Pilot & Copilot Isolate Mode; In ‘Pilot & Copilot Isolate’ mode the Pilot and Passengers hear the; Pilot & Passenger Isolate Mode; In ‘Pilot & Passenger Isolate’ mode the Pilot and Copilot hear the
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 17 GMA 350 Audio Panel Pilot & Copilot Isolate Mode In ‘Pilot & Copilot Isolate’ mode the Pilot and Passengers hear the aircraft audio. The Copilot has the option to use Split-COM mode. ICS Keys Mode Operation Aircraft Audio PASS PILOT COPLT S...
Page 18 - Copilot & Passenger Isolate Mode; In ‘Copilot & Passenger Isolate’ mode the Pilot can hear the aircraft; INTERCOM VOLUME AND SQUELCH; The; PILOT; the small knob cancels the cursor.
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 18 GMA 350 Audio Panel Copilot & Passenger Isolate Mode In ‘Copilot & Passenger Isolate’ mode the Pilot can hear the aircraft audio. The Copilot has the option to use Split-COM mode. The Passengers hear each other. ICS Keys Mode Operation Airc...
Page 19 - Adjusting Intercom Volume
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 19 GMA 350 Audio Panel Blue-Select Mode (Telephone/Entertainment Distribution) The Blue-Select Mode is entered by pressing the small knob when the volume control cursor (flashing white annunciator) is not active. If the volume control cursor is active...
Page 20 - Adjusting Speaker Volume; When the cursor is on SPKR, the Volume Control Knob adjusts the; Volume/Squelch Control; SPEAKER; All of the radios can be heard over the cabin speaker. Pressing the; SPKR; Speaker Key
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 20 GMA 350 Audio Panel Adjusting Speaker Volume When the cursor is on SPKR, the Volume Control Knob adjusts the speaker volume of the selected sources (COM, NAV, AUX, MKR). Adjusting MKR, AUX, , and MUSIC Volume When the cursor is on MKR, AUX, , MUS1 ...
Page 21 - D AUDIO
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 21 GMA 350 Audio Panel Passenger Address Mode (PA Mode) Press and hold the SPKR Key for 2 seconds to initiate Passenger Address Mode. PA Mode is annunciated by a rapid blinking of the SPKR annunciator. When in PA Mode the crew can use the PTT “Push-to...
Page 22 - Enabling 3D Audio; Press and hold the; Key to toggle 3D audio processing on and; Mono headset in use
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 22 GMA 350 Audio Panel Enabling 3D Audio Press and hold the PILOT Key to toggle 3D audio processing on and off for all headset positions. When 3D Audio is enabled, the aural message “3D audio left” is heard in the left ear followed by “3D audio right”...
Page 23 - D Audio Troubleshooting
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 23 GMA 350 Audio Panel 3D Audio Troubleshooting Symptom(s) Cause(s) Solution(s) “3D audio right” message heard in both ears. “3D audio left” not heard 1) Incorrect aircraft wiring (right channel used for mono instead of left or left/right swapped) 1) ...
Page 24 - CLEARANCE RECORDER AND PLAYER; PLAY; Marker Mute Key; VOICE RECOGNITION
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 24 GMA 350 Audio Panel CLEARANCE RECORDER AND PLAYER The GMA 350 contains a digital clearance recorder that records up to 2.5 minutes of the selected COM radio signal. Recorded COM audio is stored in separate memory blocks. Once 2.5 minutes of recordi...
Page 25 - If a command is incorrectly interpreted by the GMA 350, a negative
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 25 GMA 350 Audio Panel If a command is incorrectly interpreted by the GMA 350, a negative acknowledgement tone will be played. The pilot should repeat the command by using the Push-to-Command button, or by manually using the front panel controls of th...
Page 26 - Control; Toggles; MUSIC; “MUSIC one”
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 26 GMA 350 Audio Panel Control Example Phrase Action “Telephone” “Phone” OR “Jack” Toggles (TEL/JACK) input “Telephone mute” “Mute telephone” “Phone mute” “Mute phone” “Jack mute” OR “Mute Jack” Mutes TEL/JACK on radio reception.Voice Response: “Tel a...
Page 28 - Toggles manual squelch mode
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 28 GMA 350 Audio Panel Control Example Phrase Action Manual Squelch “Manual squelch” OR “Man squelch” Toggles manual squelch mode “Manual squelch threshold up”“Man squelch threshold up”“Manual squelch volume up”OR “Man squelch volume up” Increases man...
Page 29 - : The word “to” may be omitted from distribution phrases.; Voice Recognition Commands
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 29 GMA 350 Audio Panel Control Example Phrase Action Volume Adjustments “(Desired selection*) volume Displays the current volume but does not change it * Desired selection = “Speaker”, “pilot”, “copilot”, “passenger”, “pass”, “marker”, “aux”, “auxilia...
Page 30 - ENTERTAINMENT INPUTS; TELEPHONE AND ENTERTAINMENT MUTING; “Mute Music on
190-01134-12 Rev. D Garmin GMA 350 Pilot’s Guide 30 GMA 350 Audio Panel ENTERTAINMENT INPUTS The GMA 350 provides three stereo telephone/entertainment inputs: • The telephone/entertainment ( ) Key controls a telephone or entertainment device connected to the rear of the audio panel or to the Front P...
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