Pilot's Guide
Page 4
..., audio from the #2 COM receiver can be heard. GMA 350 Audio Panel CONTROLS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 GMA 350 Controls NOTE: When a key is selected, a triangular annunciator above the key is received. When selected, audio from the #2 NAV receiver can be heard. 4 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev.
..., audio from the #2 COM receiver can be heard. GMA 350 Audio Panel CONTROLS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 GMA 350 Controls NOTE: When a key is selected, a triangular annunciator above the key is received. When selected, audio from the #2 NAV receiver can be heard. 4 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev.
Pilot's Guide
Page 5
... for transmitting. Each subsequent press thereafter plays the previous block of a second MIC button initiates Split-COM mode. C Garmin GMA 350 Pilot's Guide 5 When in Split-COM mode, the pilot is using COM1, the copilot is not connected to enable/disable MUS1 muting during reception. 8 MUS2 - Selects and ...audio is controlled manually. 10 Volume Indicator - Press and hold to the Front Panel Jack. Selection of memory. 190-01134-12 Rev. GMA 350 Audio Panel 6 - Selection of the audio panel is used if a device is using the COM2. 13 MIC2 - Audio from a ...
... for transmitting. Each subsequent press thereafter plays the previous block of a second MIC button initiates Split-COM mode. C Garmin GMA 350 Pilot's Guide 5 When in Split-COM mode, the pilot is using COM1, the copilot is not connected to enable/disable MUS1 muting during reception. 8 MUS2 - Selects and ...audio is controlled manually. 10 Volume Indicator - Press and hold to the Front Panel Jack. Selection of memory. 190-01134-12 Rev. GMA 350 Audio Panel 6 - Selection of the audio panel is used if a device is using the COM2. 13 MIC2 - Audio from a ...
Pilot's Guide
Page 6
.../disable passenger muting during PA. 20 Cursor (CRSR) Control Knob - When selected, audio from the AUX inputs can be heard. 16 PILOT - Press and hold to Blue-Select mode. Controls the passenger intercom system. COM, NAV, AUX, and MKR receiver audio can be ... passenger. 18 PASS - GMA 350 Audio Panel 15 AUX - Controls the copilot intercom system. Selects and deselects the cabin speaker. Turn the smaller knob to the desired source. 21 Volume (VOL) Control Knob - C Press and hold to activate BlueSelect mode). 6 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. ...
.../disable passenger muting during PA. 20 Cursor (CRSR) Control Knob - When selected, audio from the AUX inputs can be heard. 16 PILOT - Press and hold to Blue-Select mode. Controls the passenger intercom system. COM, NAV, AUX, and MKR receiver audio can be ... passenger. 18 PASS - GMA 350 Audio Panel 15 AUX - Controls the copilot intercom system. Selects and deselects the cabin speaker. Turn the smaller knob to the desired source. 21 Volume (VOL) Control Knob - C Press and hold to activate BlueSelect mode). 6 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. ...
Pilot's Guide
Page 7
...automatically by Avionics Squelch (ASQ). During the selftest all Audio Panel annunciator lights illuminate for additional avionics or audio devices. C Garmin GMA 350 Pilot's Guide 7 In manual ICS squelch mode, individual threshold adjustments can be configured in use before the unit was last turned off. ...190-01134-12 Rev. Key brightness is illuminated. POWER-UP The GMA 350 performs a self-test during power-up. GMA 350 Audio Panel FEATURES AND OPERATION The GMA 350 Audio Panel provides the traditional audio selector functions of background noise. In automatic ICS ...
...automatically by Avionics Squelch (ASQ). During the selftest all Audio Panel annunciator lights illuminate for additional avionics or audio devices. C Garmin GMA 350 Pilot's Guide 7 In manual ICS squelch mode, individual threshold adjustments can be configured in use before the unit was last turned off. ...190-01134-12 Rev. Key brightness is illuminated. POWER-UP The GMA 350 performs a self-test during power-up. GMA 350 Audio Panel FEATURES AND OPERATION The GMA 350 Audio Panel provides the traditional audio selector functions of background noise. In automatic ICS ...
Pilot's Guide
Page 8
... enable/disable monitored COM muting during reception of the passenger positions, any other passenger using the GMA 350. While this does not damage the Audio Panel, a person listening on Primary COM Reception Enabled/Disabled" is heard. 8 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. TRANSCEIVERS NOTE: Transceiver functions may also be heard. ENABLING/DISABLING MONITORED COM...
... enable/disable monitored COM muting during reception of the passenger positions, any other passenger using the GMA 350. While this does not damage the Audio Panel, a person listening on Primary COM Reception Enabled/Disabled" is heard. 8 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. TRANSCEIVERS NOTE: Transceiver functions may also be heard. ENABLING/DISABLING MONITORED COM...
Pilot's Guide
Page 9
C Garmin GMA 350 Pilot's Guide 9 Pressing both the pilot and the copilot can transmit simultaneously over separate radios. In Split-COM mode, the pilot is uses COM1 and the copilot is Selected Selecting a COM Radio for Transmit 190-01134-12 Rev. The respective COM1/MIC1 or ... Split-COM operation is cancelled by the distance between the COM antennas and the separation of the selected MIC Keys again. SPLIT-COM MODE GMA 350 Audio Panel NOTE: Split COM performance is affected by pressing one of the tuned frequencies. During Split-COM operation, both MIC Keys simultaneously ...
C Garmin GMA 350 Pilot's Guide 9 Pressing both the pilot and the copilot can transmit simultaneously over separate radios. In Split-COM mode, the pilot is uses COM1 and the copilot is Selected Selecting a COM Radio for Transmit 190-01134-12 Rev. The respective COM1/MIC1 or ... Split-COM operation is cancelled by the distance between the COM antennas and the separation of the selected MIC Keys again. SPLIT-COM MODE GMA 350 Audio Panel NOTE: Split COM performance is affected by pressing one of the tuned frequencies. During Split-COM operation, both MIC Keys simultaneously ...
Pilot's Guide
Page 10
... Radio Receiver 10 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. C GMA 350 Audio Panel TRANSMIT INDICATIONS During COM transmission, the active transceiver (MIC1 or MIC2) Key Annunciator flashes approximately once per second. The MIC2 annunciator flashes when the copilot's microphone PTT is pressed. During Split-COM transmission, the MIC1 annunciator flashes when the pilot's microphone PTT...
... Radio Receiver 10 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. C GMA 350 Audio Panel TRANSMIT INDICATIONS During COM transmission, the active transceiver (MIC1 or MIC2) Key Annunciator flashes approximately once per second. The MIC2 annunciator flashes when the copilot's microphone PTT is pressed. During Split-COM transmission, the MIC1 annunciator flashes when the pilot's microphone PTT...
Pilot's Guide
Page 11
...marker beacon signal is detected, the lamps illuminate, and an associated keyed-tone is heard when MKR audio is selected. C Garmin GMA 350 Pilot's Guide 11 The receiver detects the three marker tones (outer, middle, and inner). The MKR/MUTE key annunciator indicates when marker ... required). Audio Frequency 400 Hz (Outer) Audio Keying Lamp Actuated Blue 1300 Hz (Middle) Amber 3000 Hz (Inner) White The GMA 350 provides three states of the aircraft. Marker beacon lamps operate independently of any marker beacon signal within the reception range of marker beacon ...
...marker beacon signal is detected, the lamps illuminate, and an associated keyed-tone is heard when MKR audio is selected. C Garmin GMA 350 Pilot's Guide 11 The receiver detects the three marker tones (outer, middle, and inner). The MKR/MUTE key annunciator indicates when marker ... required). Audio Frequency 400 Hz (Outer) Audio Keying Lamp Actuated Blue 1300 Hz (Middle) Amber 3000 Hz (Inner) White The GMA 350 provides three states of the aircraft. Marker beacon lamps operate independently of any marker beacon signal within the reception range of marker beacon ...
Pilot's Guide
Page 12
...MKR/MUTE annunciator. Audio muting deactivates automatically and marker beacon audio is heard when the next marker beacon signal is not detected. 12 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. Deselecting Marker Beacon Audio To deselect marker beacon audio, press the MKR/MUTE Key twice during marker beacon ...reception or once if a marker beacon signal is received. GMA 350 Audio Panel Turning Marker Beacon Audio On With the MKR/MUTE annunciator off, press the MKR/MUTE Key to mute the audio. The...
...MKR/MUTE annunciator. Audio muting deactivates automatically and marker beacon audio is heard when the next marker beacon signal is not detected. 12 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. Deselecting Marker Beacon Audio To deselect marker beacon audio, press the MKR/MUTE Key twice during marker beacon ...reception or once if a marker beacon signal is received. GMA 350 Audio Panel Turning Marker Beacon Audio On With the MKR/MUTE annunciator off, press the MKR/MUTE Key to mute the audio. The...
Pilot's Guide
Page 13
... MUSIC inputs, and one telephone/entertainment input for more information. The copilot position can be accessed via Voice Recognition commands. C Garmin GMA 350 Pilot's Guide 13 COPILOT CONFIGURED AS CREW OR PASSENGER NOTE: When the copilot position is configured as a 'passenger' for intercom and entertainment audio...as a passenger, the COPLT Key is disabled and the copilot headset is heard. 190-01134-12 Rev. The intercom provides Pilot, Copilot, and Passenger audio isolation. Pressing and holding the COPLT Key toggles the copilot position configuration between passenger and crew. ...
... MUSIC inputs, and one telephone/entertainment input for more information. The copilot position can be accessed via Voice Recognition commands. C Garmin GMA 350 Pilot's Guide 13 COPILOT CONFIGURED AS CREW OR PASSENGER NOTE: When the copilot position is configured as a 'passenger' for intercom and entertainment audio...as a passenger, the COPLT Key is disabled and the copilot headset is heard. 190-01134-12 Rev. The intercom provides Pilot, Copilot, and Passenger audio isolation. Pressing and holding the COPLT Key toggles the copilot position configuration between passenger and crew. ...
Pilot's Guide
Page 14
... hear aircraft alerts. C The Copilot and Passengers also hear each other . 14 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. Aircraft Audio PILOT COPLT PASS ICS Keys Mode Operation Pilot Isolate Mode In 'Pilot Isolate' mode the Pilot, Copilot, and Passengers hear the aircraft audio. GMA 350 Audio Panel INTERCOM MODES NOTE: In the following modes the copilot position is...
... hear aircraft alerts. C The Copilot and Passengers also hear each other . 14 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. Aircraft Audio PILOT COPLT PASS ICS Keys Mode Operation Pilot Isolate Mode In 'Pilot Isolate' mode the Pilot, Copilot, and Passengers hear the aircraft audio. GMA 350 Audio Panel INTERCOM MODES NOTE: In the following modes the copilot position is...
Pilot's Guide
Page 15
GMA 350 Audio Panel Aircraft Audio PILOT COPLT PASS ICS Keys Mode Operation Passenger/Crew Isolate Mode In 'Passenger/Crew Isolate' mode the Pilot and Copilot hear the aircraft audio and each other . C Garmin GMA 350 Pilot's Guide 15 Aircraft Audio ICS Keys PILOT COPLT PASS Mode Operation 190-01134-12 Rev. The Passengers hear each other .
GMA 350 Audio Panel Aircraft Audio PILOT COPLT PASS ICS Keys Mode Operation Passenger/Crew Isolate Mode In 'Passenger/Crew Isolate' mode the Pilot and Copilot hear the aircraft audio and each other . C Garmin GMA 350 Pilot's Guide 15 Aircraft Audio ICS Keys PILOT COPLT PASS Mode Operation 190-01134-12 Rev. The Passengers hear each other .
Pilot's Guide
Page 16
Split-COM Aircraft Audio (Optional) PILOT COPLT PASS ICS Keys Mode Operation 16 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. The Copilot has the option to use Split-COM mode. Aircraft Audio Split-COM Mode (Optional) COPLT PILOT ICS Keys PASS Mode Operation All Isolate Mode In 'All Isolate' mode the Pilot hears the aircraft audio. The Passengers hear each other . C The Copilot has the option to use Split-COM mode. GMA 350 Audio Panel Copilot Isolate Mode In 'Copilot Isolate' mode the Pilot and Passengers hear the aircraft audio and each other .
Split-COM Aircraft Audio (Optional) PILOT COPLT PASS ICS Keys Mode Operation 16 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. The Copilot has the option to use Split-COM mode. Aircraft Audio Split-COM Mode (Optional) COPLT PILOT ICS Keys PASS Mode Operation All Isolate Mode In 'All Isolate' mode the Pilot hears the aircraft audio. The Passengers hear each other . C The Copilot has the option to use Split-COM mode. GMA 350 Audio Panel Copilot Isolate Mode In 'Copilot Isolate' mode the Pilot and Passengers hear the aircraft audio and each other .
Pilot's Guide
Page 17
The Copilot has the option to use Split-COM mode. Aircraft Audio ICS Keys PILOT COPLT PASS Mode Operation 190-01134-12 Rev. Aircraft Audio Split-COM (Optional) PILOT PASS COPLT ICS Keys Mode Operation Pilot & Passenger Isolate Mode In 'Pilot & Passenger Isolate' mode the Pilot and Copilot hear the aircraft audio. C 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 Passengers hear each other.
The Copilot has the option to use Split-COM mode. Aircraft Audio ICS Keys PILOT COPLT PASS Mode Operation 190-01134-12 Rev. Aircraft Audio Split-COM (Optional) PILOT PASS COPLT ICS Keys Mode Operation Pilot & Passenger Isolate Mode In 'Pilot & Passenger Isolate' mode the Pilot and Copilot hear the aircraft audio. C 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 Passengers hear each other.
Pilot's Guide
Page 18
...after a few seconds and the position of the cursor will all hear the telephone/entertainment audio. 18 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. The Copilot has the option to the PILOT Key. Turning the large knob activates and/or moves the cursor (flashing white annunciator/ or flashing ... Mode (Telephone/Entertainment Distribution) The music (MUS1/MUS2) and telephone/entertainment ( ) audio are distributed using the Blue-Select Mode. GMA 350 Audio Panel Copilot & Passenger Isolate Mode In 'Copilot & Passenger Isolate' mode the Pilot can hear the aircraft audio.
...after a few seconds and the position of the cursor will all hear the telephone/entertainment audio. 18 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. The Copilot has the option to the PILOT Key. Turning the large knob activates and/or moves the cursor (flashing white annunciator/ or flashing ... Mode (Telephone/Entertainment Distribution) The music (MUS1/MUS2) and telephone/entertainment ( ) audio are distributed using the Blue-Select Mode. GMA 350 Audio Panel Copilot & Passenger Isolate Mode In 'Copilot & Passenger Isolate' mode the Pilot can hear the aircraft audio.
Pilot's Guide
Page 19
...will cancel Blue-Select Mode. Selecting any key other than PILOT, COPLT, PASS, MUS1, MUS2, or will also cancel Blue-Select Mode. After approximately ten seconds with no input, the Blue-Select Mode will activate Blue-Select Mode. GMA 350 Audio Panel Blue-Select Mode (Telephone/Entertainment Distribution) The ... crew/passenger positions. If the volume control cursor is on or off to distribute the telephone/entertainment audio to be blue. C Garmin GMA 350 Pilot's Guide 19 Turn the large knob to select MUS1 or MUS2 and select the crew positions to receive the music audio.
...will cancel Blue-Select Mode. Selecting any key other than PILOT, COPLT, PASS, MUS1, MUS2, or will also cancel Blue-Select Mode. After approximately ten seconds with no input, the Blue-Select Mode will activate Blue-Select Mode. GMA 350 Audio Panel Blue-Select Mode (Telephone/Entertainment Distribution) The ... crew/passenger positions. If the volume control cursor is on or off to distribute the telephone/entertainment audio to be blue. C Garmin GMA 350 Pilot's Guide 19 Turn the large knob to select MUS1 or MUS2 and select the crew positions to receive the music audio.
Pilot's Guide
Page 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 source. Adjusting MKR, ... the SPKR Key selects and deselects the cabin speaker. Manual Squelch Annunciator; Speaker audio is muted when the PTT is not selected. C Speaker Key 20 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev.
GMA 350 Audio Panel Adjusting Speaker Volume When the cursor is on SPKR, the Volume Control Knob adjusts the speaker volume of the selected source. Adjusting MKR, ... the SPKR Key selects and deselects the cabin speaker. Manual Squelch Annunciator; Speaker audio is muted when the PTT is not selected. C Speaker Key 20 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev.
Pilot's Guide
Page 21
...COM Mode by a rapid blinking of the SPKR annunciator. Because this feature uses different signals for left seat. GMA 350 Audio Panel Passenger Address Mode (PA Mode) Press and hold the SPKR Key for stereo intercom and stereo headsets. ... audio processing creates the illusion that each audio source is no benefit from a unique location or seat position. A Garmin authorized service center can continue to use the PTT "Pushto-Talk" button to deliver announcements over the speaker, to ... hears COM1 at 11 o'clock and COM2 at the 12 o'clock position. C Garmin GMA 350 Pilot's Guide 21
...COM Mode by a rapid blinking of the SPKR annunciator. Because this feature uses different signals for left seat. GMA 350 Audio Panel Passenger Address Mode (PA Mode) Press and hold the SPKR Key for stereo intercom and stereo headsets. ... audio processing creates the illusion that each audio source is no benefit from a unique location or seat position. A Garmin authorized service center can continue to use the PTT "Pushto-Talk" button to deliver announcements over the speaker, to ... hears COM1 at 11 o'clock and COM2 at the 12 o'clock position. C Garmin GMA 350 Pilot's Guide 21
Pilot's Guide
Page 22
... a service center as soon as possible to inspect/ correct wiring. This wiring fault can cause fail-safe audio not to function. 22 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. Refer to the following table if a headset or aircraft wiring problem is heard in the right ear. This wiring...Incorrect aircraft wiring (left and then the right ear respectively, the cause may be aircraft wiring or headset settings. C GMA 350 Audio Panel Enabling 3D Audio Press and hold the PILOT Key to toggle 3D audio processing on headset to 'stereo' 3) If after checking solutions #1 and #2 see a ...
... a service center as soon as possible to inspect/ correct wiring. This wiring fault can cause fail-safe audio not to function. 22 Garmin GMA 350 Pilot's Guide 190-01134-12 Rev. Refer to the following table if a headset or aircraft wiring problem is heard in the right ear. This wiring...Incorrect aircraft wiring (left and then the right ear respectively, the cause may be aircraft wiring or headset settings. C GMA 350 Audio Panel Enabling 3D Audio Press and hold the PILOT Key to toggle 3D audio processing on headset to 'stereo' 3) If after checking solutions #1 and #2 see a ...
Pilot's Guide
Page 23
... 1) Stereo headset is backwards left " not right swapped) heard 1) See a service center as soon as possible to inspect/correct wiring. C Garmin GMA 350 Pilot's Guide 23 "3D audio left" message heard in left ear only, no audio heard in right ear. 1) Aircraft wired for mono intercom 1) See...or left/ audio left / right position information will be swapped. 2) See a service center as soon as possible to function. GMA 350 Audio Panel 3D Audio Troubleshooting Symptom(s) Cause(s) Solution(s) "3D audio 1) Incorrect aircraft right" message wiring (right channel heard in right swapped...
... 1) Stereo headset is backwards left " not right swapped) heard 1) See a service center as soon as possible to inspect/correct wiring. C Garmin GMA 350 Pilot's Guide 23 "3D audio left" message heard in left ear only, no audio heard in right ear. 1) Aircraft wired for mono intercom 1) See...or left/ audio left / right position information will be swapped. 2) See a service center as soon as possible to function. GMA 350 Audio Panel 3D Audio Troubleshooting Symptom(s) Cause(s) Solution(s) "3D audio 1) Incorrect aircraft right" message wiring (right channel heard in right swapped...