Audio Panel System
|Dimensions:||6.25"W x 1.30"H x 7.80"D||Weight:||2.4 lb|
|Telephone Interface:||dedicated full-duplex tel interface (no PTT keying required)||ICS:||6 to 7 position intercom (individual VOX processing for each mic position)|
|ICS Isolation Modes:||5 - all, Pilot, Copilot, Crew/Pass, None||Transceivers:||2 - COM1, COM2|
|Additional Receiver Inputs:||5 - NAV1, NAV2, AUX1, AUX2, AUX3||Music Source Input:||2 Stereo Music Source Inputs|
|Music Input Impedance:||Rear pins: 600 Ohms, front panel jack: 5 kOhms||Music Frequency Response:||20Hz - 20kHz|
28V aircraft - 10W into 4 Ohms, 7W into 8 Ohms; 14V aircraft - 3W into 4 Ohms
|PA Function:||pilot selectable - requires pressing and holding SPKR button to change state|
|Marker Beacon:||dual sensitivity||Manual Squelch:||Yes|
|Intercom Volume Controls:||Yes||Manual VOX Level Controls:||1 (shared threshold, individual processing)|
|Alert/Unswitched Inputs:||5||Front Panel Jack:||yes (3.5mm - smartphone compatible)|
|Front Panel Music Volume Control:||Yes (music & telephone volume controls)||TSO Authorized:||Yes|
|Part Number||Audio Panel Description:|
|010-00871-00||GMA-350, Unit Only - Catalog P/N|
|010-00871-01||GMA-350, Standard - Catalog P/N|
|010-00871-20||GMA-350, Unit Only - Catalog P/N|
|010-00871-21||GMA-350, Standard - Catalog P/N|
|011-02385-00||GMA-350 - Actual P/N on Unit|
|011-02385-20||GMA-350 - Actual P/N on Unit|
Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact firstname.lastname@example.org
3D audio is enabled by pressing and holding 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" in the right ear. If the aural messages are not heard in only the left and then the right ear respectively, the cause may be aircraft wiring or headset settings.
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 recording time have been reached, the recorder begins recording over the stored memory blocks, starting from the oldest block. To hear the latest recorded audio, press the PLAY button once.
Yes, however 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 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.
If there is a failure in the GMA-350 or when power is not applied, a fail-safe circuit connects the pilot's headset and microphone directly to the COM1 transceiver. Audio is not available on the speaker during Fail-safe operation.