This GMA 340 was removed during an upgrade to a new Garmin Bluetooth intercom. It is in working order with good audio quality and no known issues; however, it is provided AS-IS. The front panel is clean.
Please note that, due to the Thanksgiving Holiday, if the purchase is made after 11/20/2017, it will not be shipped until 11/27/2017 . Thank you for your understanding.
The marketing copy below is from Garmin. Buyers should do their own research.
| FEATURES | - LED-illuminated push button audio panel allowing audio selection of both NAV and Comm audio
- Large buttons activate the Comm microphone and audio for up to three Comm transceivers
- Split Comm feature allows pilot to transmit/receive on Comm 1 and co-pilot to transmit/receive on Comm 2
- Comm transmit indication provided
- Speaker selection available to monitor aircraft radios or to make PA announcements
- Two unswitched inputs for telephone ringers, altitude alert warnings or other warning tones
- Includes 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 dedicated VOX circuit to ensure that only active microphone is heard when squelch is broken
- Standard three-light Marker Beacon Receiver with high/low sensitivity selection and audio muting with automatic rearming
- Shallow depth and lightweight
- 14 or 28 Volt operation without voltage converters or dropping resistors
- Photo cell dimming of annunciators
- Pilot fail-safe mode connection to Comm 1
- FAA TSO approval
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| SPECIFICATIONS | | TSO Compliance: | TSO-C50c
TSO-C35d | Dimensions: | Length behind panel: 6.4"
Rack width: 6.29"
Height: 1.3" | | Power Requirements: | Supply voltage of 11-33 Vdc; Operating current of 2.2A (13.8V, speaker on) | Temperature Range: | -20C to +55C | | Audio Panel: | 3 transceiver inputs
5 receiver inputs
2 unswitched inputs
500 ohm input impedance
60db min input isolation | Intercom: | 6 (pilot, copilot, 4 passengers) positions
3 (pilot, copilot, passengers) volume controls
2 (pilot, copilot/passengers) VOX level controls
6 (one per mic input) VOX circuits
2 (one input mutable) music inputs (Stereo)
3 intercom isolation modes (pilot, crew, all) | Headphone Outputs:
| 3 stereo (pilot, copilot, passengers) output amplifiers
Power: 100 mW per stereo channel, each headset, into 150 ohms with not more than 5% distortion, any normal supply voltage
100 Hz to 15 kHz nom music frequncy response
100 Hz to 6 kHz nom A/C radio frequency
Special cabin noise band de-emphasis on ICS mic
| Speaker Outputs: | Outputs Selectable: 1 pilot selectable
Output Power: 10 watts into 4 or 8 ohms, any normal supply voltage
Frequency Response: 350 to 6 kHz nom
Special functions: PA Mode, pilot selectable
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