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Features You Want in a Replacement NAV/COMM – No Nonsense

Introducing an ideal replacement NAV/COMM for your inoperative Bendix King, ARC or Narco radio that could also be used as a reliable back-up VOR/ILS/COMM to your GPS NAV/COMM. Our radios are built to last and have sunlight readable, digital flip-flop tuning with up to 50 frequency storage in both NAV and COMM.

We didn’t reinvent the wheel or add features you don’t want or need. Our systems offer 760 COMM and 200 NAV channels. Easy 25kHz spacing tuning knobs allow you to choose a frequency to enter—and simple press to flip-flop buttons let you move standby to active in a split second.

You also get a convenient VOR identifier button that lets you hear the Morse code station identifier for only as long as you need it.

Any pilot can remove your Bendix King, ARC, or Narco unit in minutes, clean the connectors with a non-toxic solvent (if needed) and install your new TKM NAV/COMM legally in 20 seconds. All you need is an Allen wrench or long-shaft screwdriver.

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Units Delivered & Counting!

Since 1968, TKM has delivered over 37,000 field-proven replacement NAV/COMM radios, with most still installed and operating reliably. Located on the Scottsdale, AZ Airport (SDL) TKM assembles, tests, ships, repairs our entire line of replacement NAV/COMM radios.

Is your Bendix King KX170/KX175 Dead or Dying? It’s 182 in dog years.

Get a new IFR/TSO’d TKM MX170C Replacement NAV/COMM

The MX170C is designed to be electrically and mechanically interchangeable with the Bendix King KX170/KX175 series of NAV/COMM radios.

  • 25kHz digital flip-flop tuning
  • Simple to use KX170 features
  • Easy, slide-in NAV/COMM
  • DIY – Installs in five minutes
  • Two-year manufacturer’s warranty
KX170 KX175 Replacement NAV/COMM - MX170C
RT308 RT328 RT508 RT528 Narco MK12D Replacement NAV/COMM - MX300

Is Your Cessna ARC NAV/COMM Tango Uniform?

Get a new IFR/TSO’d TKM MX300 Replacement NAV/COMM

Replaces Cessna ARC RT308, RT328, RT508, RT528, and Narco MK12D

  • 25kHz digital flip-flop tuning
  • Simple to use RT300/500 features
  • Easy, slide-in NAV/COMM
  • DIY – Installs in five minutes
  • Two-year manufacturer’s warranty

Is Your Cessna ARC NAV/COMM Tango Uniform?

Get a new IFR/TSO’d TKM MX385 Replacement NAV/COMM

Replaces Cessna ARC RT385A, RT485A

  • 25 KHz digital flip-flop tuning
  • Simple to use RT385A/485A features
  • Easy, slide-in NAV/COMM
  • DIY – Installs in five minutes
  • Two-year manufacturer’s warranty
RT385 RT485 Replacement NAV/COMM - MX385
Narco Replacement NAV/COMM - COM 120 - MX11

Is Your Narco MK11/COM120 D.O.A?

Get a new IFR/TSO’d TKM MX11 Replacement COMM

Replaces Narco COM11, 11A, 11B, 111, 111B & 120

  • 25 KHz digital flip-flop tuning
  • Simple to use Mark 11A features
  • Easy, slide-in NAV/COMM
  • DIY – Installs in five minutes
  • Two-year manufacturer’s warranty