From within the familiar ECPINS software environment, the operator can tune the radar, adjust range, set blank sectors, and switch between Transmit, Standby, and Off. For tactical work, Radar HMI enables ARPA contact acquisition, association of AIS and ARPA contacts, EBLs and parallel indices, relative vectors, and trial maneuvers. Underneath the radar returns, the powerful ECPINS chart display engine and uses the same charts, routes, and waterspace available in the rest of the system.