The present invention is directed toward realizing a radio parameter determination method for improving values indicating the communication service quality of important areas in a radio communication system. Properties of effect pigments are to be examined in particular. A multiplexer provides the coded detection signal selectively from the LFSRs to the output pin and the comparator. A configuration diagram visually representing a current configuration of the client system is displayed. The third position is a position farther than the second position with respect to the first position in a direction going from the support member toward the maintenance unit in the orthogonal direction.