Garmin GMA 342/345 Installation Manual Overview

Introduction to Garmin GMA 342/345 Audio Panels

The Garmin GMA 342 and GMA 345 are advanced, TSO-certified digital audio panels designed for aircraft. These units efficiently collect, process, and distribute audio signals to both crew and passengers, utilizing digital signal processing (DSP) to minimize noise and enhance clarity. The manual is intended for qualified avionics engineering personnel and installation specialists, ensuring proper and safe integration into aircraft systems.

For comprehensive support and warranty details, individuals can visit the official flyGarmin website. Additional product information and environmental qualification forms are available on the Garmin website.

Key Features and Specifications

The GMA 342/345 series offers robust features tailored for aviation environments:

• High-Fidelity Audio: Digital signal processing ensures clear audio communication.
• Connectivity Options: The GMA 345 includes a Bluetooth® transceiver for music streaming and phone calls, along with a 10-watt USB charge port. The GMA 342 features a front panel 3.5 mm jack for external audio devices.
• Intercom System: Both models provide automatic intercom squelch and configurable settings for pilot, copilot, and passenger communications.
• Fail-Safe Operation: A direct connection ensures pilot headset and microphone functionality even if power is interrupted.
• Configurability: Units are easily configurable without external PC connections, supporting various installation settings via an 8-position DIP switch.

This manual details the mechanical and electrical specifications, installation procedures, and system interconnects necessary for integrating these audio panels into an aircraft. It also includes a record of revisions, highlighting updates to the document content over time.

Important Notice: This product, its packaging, and components may contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm, in accordance with California's Proposition 65. For more information, please refer to www.garmin.com/prop65.