|GARMIN's new GMA 340 audio panel meets the needs of
aircraft owners and operators who require reliability and
versatility in the essential audio switching function.
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