The locomotive is equipped with a radio interference suppression center, which, in conjunction with the interference protection elements installed in the Märklín transformers 6711 and 6731 and in the 8590 siding section, ensure compliance with the provisions of VDE 0875 in the operation of the toy system. e.g. due to too small a distance from the receiving antenna or deviations from the specified structure of the packaging, the interference is immediate, e.g. By placing the attachment in a different place or by changing the structure, to be removed.