MX12 NAV/COMM – Narco MK12 Replacement

Narco MK12, Narco MK12 A, Narco MK12 B Narco MK12 DR NAV/COMM Replacement - MX12


The MX12 NAV/COMM is designed as a direct replacement for the Narco MK12, Narco MK12 A, Narco MK12 B and the Narco MK12 DR NAV/COMM. The MX12 NAV/COMM will mount in the aircraft’s existing tray, and its connectors will interface with the existing OEM connectors. Since the original remote power supply is no longer required, a jumper plug is provided to make the proper interconnect for speaker, mike and power. If glide slope interface is required, an optional cable is available. See the owner’s manual for detailed specifications.

Please contact us for price and availability!

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Customers can order direct from the factory by contacting us or from our very knowledgeable and helpful dealers. Simply click on a dealer image to be directed to the product directory.


  • Frequency Range: Comm – 760 channels 118.000 to 136.975 MHz Nav – 200 channels 108.00 to 117.95 Mhz Preselect channel storage capacity – 100
  • Frequency Stability: +/- .003%, -20C to 50C
  • Transmitter Power: 8 watts min.
  • Sidetone:Adjustable to 40 mw into 500 ohms
  • Receiver Sensitivity: 1.5uV (soft) for 6db s+n/n or 1/2 flag
  • NavComm Selectivity: 6db @ +/- 7.5 Khz; 50db @ +/- 17.5 Khz; 60db @ +/- 25 Khz
  • Nav Selectivity: 6db @ +/- 15 Khz; 50db @ +/- 35 Khz; 60db @ +/- 50 Khz
  • Squelch: Noise adaptive squelch with manual override
  • Audio Output: 5 watts into a 4 ohm speaker; 40mw into 500 ohm headphones
  • Demod output: VOR adjustable from 1.0 to 3.0 arms
  • Weight: 5 lbs
  • Size: 6.312″ wide x 2.90″ height x 12.00″ mounting depth
  • TSO: C34e, C36e, C37d, C38d, C40C

TKM, Inc. Limited Warranty

New TKM Inc. products are warranted against defects in workmanship and material under normal intended use, for two years from date of purchase. Batteries are warranted for 90 days. TKM’s limit of liability shall be to repair or replace the product, at our discretion.  Transportation shall be paid by the owner to the TKM factory or authorized service facility.  TKM shall not be liable for any consequential damage expense. TKM does not accept any repairs sent COD, all completed repairs must be returned prepaid.  Customs, brokerage, import, or export fees, etc. are the responsibility of the customer.