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The GMA 340 features innovative LED-illuminated push button controls that allow audio selection of both NAV and Comm audio. Large buttons activate the Comm microphone and audios for up to three Comm transceivers to simplify cockpit workload. Another feature of the GMA 340 is the Split Comm, which allows the pilot to transmit/receive on Comm 1 and the co-pilot to transmit/receive on Comm 2. MASQ™ processing reduces ambient noise from the avionics inputs. Comm transmit indication is also provided. Speaker selection is available to monitor the aircraft radios or to make PA announcements. There are two unswitched inputs for telephone ringers, altitude alert warnings, or other warning tones. In addition, the GMA 340 includes a six-place VOX intercom with three selectable modes of isolation, dual stereo music inputs, and independent pilot, co-pilot, and passenger volume control. Each microphone input has a dedicated VOX circuit to ensure that only the active microphone is heard when squelch is broken. Special cabin noise de-emphasis circuitry enhances cockpit communications. Also standard is the three-light Marker Beacon Receiver/Indicator with high/low sensitivity selection and SmartMute™ marker audio muting.
Surface mount technology provides shallow depth and light weight, which simplifies installation in the tightest aircraft spaces and saves precious panel space. Operation is available in 14 or 28 volts without voltage converters or dropping resistors. Installation is simplified with the built-in intercom and marker beacon, and the GMA 340 also features photo cell dimming of annunciators, pilot fail-safe mode connection to Comm 1, and FAA TSO approval.
Read what Private Pilot magazine had to say about the GMA 340:
"The Garmin® Model 340 audio panel, reviewed above, is the finest example of communications integration and control for GA. The ICS system offers everything: individual level controls, positive com override of crew/music audio, stereo or monaural operations, soft-on/off, music/voice, crew-isolation, positive VOX control—you name it! The marker beacon and multifunction communications controls complete an excellent design. This unit will be as popular as Garmin's GPS units." -Private Pilot, March 1999 |
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