Cessna RT-485B NAV/COMM

ARC's RT-485B is a solid-state TSO'd NAV/COMM transceiver. The RT-485B uses an electronic digital frequency display. For greater convenience, there are three memory frequencies on both the COMM and NAV sides. This radio is directly compatible with the RT-385A, offering an easy upgrade path. The ARC (Cessna) RT-485B features:

720 COMM channels
200 NAV channels
7 watts nominal transmission power
Remote Glideslope channeling (such as the R-443B)
Remote DME channeling

These are the most common indicators used in RT-485B installations:

For VOR/LOC installations:
IN-385A VOR/LOC Indicator
IN-385AC VOR/LOC Indicator (with autocentering)
IN-485AC VOR/LOC Indicator (with autocentering)
For VOR/LOC/Glideslope installations (requires an R-443B Glideslope Receiver):
IN-386A VOR/LOC/Glideslope Indicator
IN-386AC VOR/LOC/Glideslope Indicator (with autocentering)
IN-486AC VOR/LOC/Glideslope Indicator (with autocentering)