A radio communications network for transmitting data from a plurality of remote stations to a central station is provided. The system may include a drive member, a pulley member, and a spring member. The method also includes setting a pointer to enable writing second data that is received to a next storage location in the nonvolatile data store. The invention suggests a series of measures in order to electrically balance the resistance bridge. Once the semiconductor substrate has been transferred outside the process chamber of the semiconductor fabrication apparatus, the by-product isare removed by evaporation.