of operation of a transponder system for better comprehension of the teaching of the present invention transponder 4 shown therein is embodied as a combined write read transponder and in the form of a clip mountable on object carrier 2 in addition transponder 4 communicates by way of a transmission and reception path with a receiver 7 more precisely with an electronic analysis system control unit that in turn is connected to a process computer 8 and an electronic control system 9 although process computer 8 precedes electronic analysis system 9 in the embodiment selected here it is certainly also possible for electronic analysis system 9 to precede process computer 8 the program sequence can thus be influenced via process computer 8 by the detection of object 1 the electronic analysis system serving to process the detected data of the respective object 1 concerning the depiction in fig2 be it noted with regard to the manner of operation of a transponder system that excitation coil 5 also simultaneously serves as a transmit receive antenna excitation coil 5 generates an excitation field when an object equipped with a transponder comes into that excitation field a voltage is induced in a coil provided in the transponder the transponder thereupon sends a code a sequence of numbers or digits to electronic analysis system 9 depicted in fig1 that code is received by the same coil excitation coil that generates.