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Part #: 011-00401-01

Model: GMA-340H




Audio Panel

Part Number :

GMA 340H


  • 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
  • Helicopter version available with pilot and co-pilot ICS volume controls on front panel reversed (see Page 2 of Pilots Guide for key layout)
  • Version available with dual ADF audio inputs (see Page 2 of Pilots Guide for key layout)


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
Part Number Audio Panel Description:
010-00152-01 With details above
010-00152-03 With details above


- Audio Panel
Price Condition Status

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Newly Overhauled parts obtained from Garmin are designated with an N in their part number. This usually follows the 010- in the part number. As with most Garmin 010 part numbers, the N part numbers are for ordering purposes only and do not actually appear on the dataplate of the unit.