MDF not recognizing radar

[Mark - Raymarine - Moderator]

Hello kuppersmit,
It should be as simple as powering on both the e7 MFD and the RD418D radar at approximately the same time. If that isn't working for you, then I would try a factory reset. Prior to the factory reset, it would be recommended that the waypoint, route, and track data be saved to a microSD memory card and that a System Settings & Data Reset (HOME->SET-UP->MAINTENANCE->SYSTEM SETTINGS & DATA RESET) command then be executed to address a radar problem with the symptoms reported.