The present invention provides a method in which a counting source is provided in data after analogdigital conversion to lessen a load placed when new and old data after the conversion are compared to each other. In one exemplary embodiment, a transparent conductor comprises a substrate and a transparent conductive coating disposed overlying the substrate. The sharing of preamble signaling, elimination of multiple inter-frame gaps or spaces, and the use of a legacy signal field permits a representative embodiment of the present invention to more effectively use a shared communication medium, while in addition providing backward compatible support for legacy network stations. The rotation device may support the specimen and enable rotation of the specimen around first and second axes that are perpendicular to the longitudinal axis of the member. The composition can be of particular use as a component of an automobile catalytic converter, for the specific catalytic reduction of nitrogen oxides to nitrogen gas.