Garmin GMA 350 manual 3D Audio, Passenger Address Mode PA Mode, Split-PA Mode

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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-Talk” button to deliver announcements over the speaker, to the passenger headsets, or both depending on configuration.

Split-PA Mode

During Split-PA Mode the pilot can continue to use the radio(s) while the copilot delivers PA announcements. To initiate Split-PA Mode, first enter Split-COM Mode by pressing both MIC Keys simultaneously, then press and hold the SPKR Key for 2 seconds.

3D AUDIO

3D Audio is useful when multiple audio sources are present. By using different responses in each ear, 3D audio processing creates the illusion that each audio source is coming from a unique location or seat position.

Because this feature uses different signals for left and right channels, it requires wiring for stereo intercom and stereo headsets. If 3D audio is activated when mono headsets are in use, the listener will still hear all audio sources; however, there is no benefit from location separation.

With a single COM selected and 3D Audio enabled, the listener hears the audio source at the 12 o’clock position. If both COMs are selected, the listener hears COM1 at 11 o’clock and COM2 at the 1 o’clock position. All other intercom positions are processed to sound like their relative seat location. By default, the GMA 350 assumes the pilot sits in the left seat. A Garmin authorized service center can make changes to the default configuration.

190-01134-12 Rev. D

Garmin GMA 350 Pilot’s Guide

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Contents GMA Tel 913/397.8200 Fax 913/397.8282 Limited Warranty Controls 190-01134-12 Rev. D GMA 350 Audio Panel POWER-UP Features and OperationMONO/STEREO Headsets TransceiversENABLING/DISABLING Monitored COM Muting SPLIT-COM Mode Transmit Indications ReceiversAudio Audio Keying Marker Beacon ReceiverTurning Marker Beacon Audio On Muting Marker Beacon AudioDeselecting Marker Beacon Audio Intercom Controls Intercom System ICSAll Intercom Mode Pilot Isolate ModeIntercom Modes Pilot Coplt Passenger/Crew Isolate ModeAll Isolate Mode Copilot Isolate ModePilot & Passenger Isolate Mode Pilot & Copilot Isolate ModeIntercom Volume and Squelch Copilot & Passenger Isolate ModeAdjusting Manual Squelch Adjusting Intercom VolumeAdjusting Speaker Volume Adjusting MKR, AUX, , and Music VolumeSpeaker Passenger Address Mode PA Mode Split-PA Mode3D Audio 3D Audio Troubleshooting Causes SolutionsEnabling 3D Audio GMA 350 Audio Panel Voice Recognition Clearance Recorder and PlayerControl Example Phrase Action EnabledTelephone Phone or Toggles Example Phrase Action Squelch Manual3D Audio Does not change itFAIL-SAFE Operation Entertainment InputsTelephone and Entertainment Muting Enabling/Disabling MutingBlank 913.397.8200 f