Garmin GMA 245 Pilot's Manual

Also see for GMA 245: Installation manual

Contents

Garmin GMA 245 Pilot's Manual Manual pdf 16 page image

190-01879-10 Rev. FGarmin GMA 245 Pilot’s Guide16GMA 245 Audio PanelSPEAKERNOTE: Speaker audio turns off in circumstances where aircraft powerfalls below 11 volts.All of the radios can be heard over the cabin speaker. Pressing theSPKR Key selects and deselects the cabin speaker. Radios are muted tothe speaker when a COM microphone is keyed. Aural alerts and warningsare always heard on the speaker, even when the speaker is not selected.3D AUDIO3D Audio is useful when multiple audio sources are present. By usingdifferent responses in each ear, 3D audio processing creates the illusion thateach audio source is coming from a unique location or seat position.Because this feature uses different signals for left and right channels, itrequires wiring for stereo intercom and stereo headsets. If 3D audio isactivated when mono headsets are in use, the listener will still hear all audiosources; however, there is no benefit from location separation.With a single COM selected and 3D Audio enabled, the listener hearsthe 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 seatlocation. By default, the GMA 245 assumes the pilot sits in the left seat.Refer to the GMA 245 Installation Manual to make changes to the defaultconfiguration.ENABLING 3D AUDIOPress and hold the PILOT Key to toggle 3D audio processing on and offfor 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” in theright ear. If the aural messages are not heard in only the left and then theright ear respectively, the cause may be aircraft wiring or headset settings.