Per Bendix/King Installation Bulletin # 489, only the Bendix/King RS-181A, RS-811A, RS-841A, RS-861A, ART-2000, and ART-2100 radar sensors can be interfaced to the KMD-850 Multi Function Display for weather radar display. However, amongst these sensors there are requirements that each must meet to properly interface with the KMD-850 MFD.

- ART-2000 wthout Mod 6 and/or without Software Mod Level 01/09 or higher need to be upgraded to operate with the KMD-850.

- ART-2100 wthout Mod 3 and/or without Software Mod Level 01/04 or higher need to be upgraded to operate with the KMD-850.

- RS-181A, RS-841A, and RS-861A sensors with part number 071-01315-0010 or 071-1315-10 cannot operate in Vertical Profile (VP) mode can must be converted to -00/-0000 or -30/-0030 to operate with the KMD-850.