The ARC (Cessna) IN-386A is the standard VOR/LOC/Glideslope Indicator for the 28 volt 300 and 400 series NAV/COMMs. It uses two pendulum meter movements.

The ARC IN-386A's features include:

• Back course annunciator light
• Snap action TO-FROM flag
• Internal VOR/LOC Converter

The ARC IN-386A may be used with the following NAV/COMMs. Neither the IN-386A nor these NAV/COMMs contain a Glideslope Receiver, so it needs that information from another source. The most common solution is to add the ARC R-443B Glideslope Receiver.

• RT-385A NAV/COMM
• RT-485A NAV/COMM
• RT-485B NAV/COMM
• MK-12E ARC (Cessna) Replacement NAV/COMM
• MX-385 NAV/COMM

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