A method of making a dunnage product from a continuous length of stock material having a cohesive on at least one surface thereof comprises the step of converting the stock material into a relatively less dense configuration with at least two cohesive portions of the stock material being attached together. A lower assembly is mountable to a base that supports the chuck. Lateral face regions of the optical element, the regions extending from the cover surface in the direction of the corners of the base, are formed by flat or rotationally symmetrical surface regions. At this coarse frequency, the receiving system repeats its search for the transmitter’s CDMA phase, starting at the previously determined coarse phase.