When you want to upgrade your radios, one of the common barriers is the cost and hassle of installation. Wouldn't it be great to just slide a replacement right into the existing rack? If you have thought this, you should know about TKM.

TKM has developed a special niche in the avionics market. They make only direct replacement radios for common older avionics. This means that the owner of a TKM radio can quickly and easily replace the original radio at no installation cost, while enjoying convenience features such as frequency flip flop, frequency memory, and a bright easy-to-read display.

The MX-385 is the TKM radio designed as a slide-in replacement for the ARC (Cessna) RT-385 and RT-485 series of NAV/COMMs. This radio is available with either a black or tan faceplate, to better match your radio stack.

There is more to the MX-385 than just painless installation. It features:

• 200 NAV channels
• 760 COMM channels
• FM Immune (ICAO Annex 10)
• Simultaneous digital display of both active and standby frequencies
• Push button frequency flip-flop
• 10 memory channels
• 8 watts transmit power
• Automatic squelch

These are the most common indicators used in MX-385 installations (the same as with an RT-385 / RT-485 installation):

For VOR/LOC installations:

• IN-385A VOR/LOC Indicator
• IN-385AC VOR/LOC Indicator (with autocentering)

For VOR/LOC/Glideslope installations:

• IN-386A VOR/LOC/Glideslope Indicator & R-443B Glideslope Receiver
• IN-386AC VOR/LOC/Glideslope Indicator (with autocentering) & R-443B Glideslope Receiver

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