Disclosed are a method and an arrangement for the remote-controlled testing of a specimen, the data of the control unit and the specimen being supplied in a format that corresponds to a transmission protocol used for the unsecured transmission of data. The end of valve, which points away from the magnet core towards the magnet armature, bears against an area of a valve tappet remote from the valve seat. The data sample records are transformed to frequency components and the random jitter and noise, and periodic jitter and noise components are determined.