The invention provides for a medical instrument (100, 400, 500, 600, 900, 1000, 1100. 1200, 1400) comprising a magnetic resonance imaging system. The medical instrument comprises: a radio frequency system (116) configured for sending and receiving radio frequency signals to acquire magnetic resonance imaging data (302). The radio frequency system is configured for connecting to a magnetic resonance imaging antenna (114). The medical instrument further comprises a subject support (120) configured for supporting at least a portion of a subject (118) in an imaging zone (108) of the magnetic resonance imaging system. The subject support comprises an antenna connector (124) configured for connecting to the magnetic resonance imaging antenna. The radiofrequency system is configured for connecting to the magnetic resonance imaging antenna via the antenna connector. The subject support comprises a remotely controllable actuator (126) configured for translating the antenna connector to a connector position (154, 126) along a path (126). The medical instrument further comprises a memory (148) comprising machine executable instructions (150). The medical instrument further comprises a processor (144) for controlling the magnetic resonance imaging system. Execution of the machine executable instructions causes the processor to: receive (350) the connector position (154)； and control (352) the remotely controllable actuator to move the antenna connector along the path to the connector position (128).
