GMA 340
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| 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 TSO approval. |
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The
PMA 7000 is a second generation audio selector/intercom
system. It features IntelliVoxTM, an automatic VOX system.
IntelliVox™ samples the mics and determines what is spech and
what is noise. There is no need to adjust the squelch for chaning
flight regimes, nor is there a need to recalibrate the VOX
setting. A Digital Recorder/Audio Warning (DRAW) system is
available as option 1. Besides a 60-second recorder, it also
provides six aural alerts stored in non-volatile memory. The
messages play when activated by discrete inputs from Electronics
International (and others) engine gage systems. 6.25" W x
1.3" H x 6.8" D
