ARC's RT-385A is a solid-state TSO'd NAV/COMM transceiver. The RT-385A uses an electronic digital frequency display. If your aircraft has a 28 volt electrical system, this may be the least expensive way to add a NAV/COMM, especially one with an electronic LED display.

However, please note that these radios are getting older, and reliability is falling over time.  If you are looking for a more-reliable alternative, we recommend you consider the TKM MX-385, which is directly interchangeable.

These radios are available with either a black or tan faceplate. The ARC (Cessna) RT-385A features:

• 720 COMM channels
• 200 NAV channels
• 7 watts nominal transmission power

These are the most common indicators used in RT-385A installations:

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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