Garmin GMA 342 Audio Panel 6 Place TSO

The Garmin GMA 342 is an all-digital, panel-mounted aircraft audio panel for six-place intercom installations. Manufacturer catalog part number 010-01319-13 identifies the GMA 342 standard kit configuration; the associated unit part number is 011-03520-11.

Designed to collect, process and distribute crew and passenger audio, the GMA 342 provides digital audio routing and includes a cockpit voice-recording and playback function for reviewing COM transmissions. Its front-panel 3.5 mm, 4-conductor jack supports wired connection of compatible phones or tablets for stereo audio and phone calls.

• Six microphone inputs: pilot, copilot and four passenger positions
• Two COM channels, five receiver inputs and two rear music inputs
• Front-panel 3.5 mm audio input, separate from the rear music inputs
• Automatic intercom squelch and selectable keyed intercom squelch
• Marker beacon receiver and cockpit speaker output
• Designed by Garmin as a drop-in replacement for the GMA 340

Garmin documentation lists this GMA 342 configuration with TSO-C35d and TSO-C139a compliance, subject to the applicable limitations and deviations stated in the installation manual. Installation, configuration and approval for the aircraft must be assessed by suitably authorised personnel in accordance with applicable requirements.

Documentation: Garmin GMA 342/345 Installation Manual