Abstract: The invention relates to a communications system (10, 110) for an aircraft comprising a transceiver (22) having at least one transmitter (24), at least one receiver (26, 28) and at least one antenna, at least one data processing device (12) connected to the transceiver (22) by means of a data transfer device (20) and having at least one operating device (14), connected to the at least one data processing device (12), having manually activated switches, buttons and/or rotary knobs (18) for entering data into the at least one data processing device (12). According to the invention, the at least one operating device (14) is mechanically connected to the at least one data processing device (12) to form an assembly (16).