Disclosed is a display for the holographic reconstruction of a three-dimensional scene using means which allow a reduction of speckle patterns. When determining that it is during DTX, from the output of the spreading code determining section, a DTX determining section reports this to the radio receiver, the path selector, a JD operation section, and a despreadingRAKE-combination section to make them stop processing. A rotatable spiral trough, having lifting members therein, extends through each zone for imparting a spiral rolling motion to the oil sand. A method comprising contacting a support with a chromium-containing compound and a tin-containing compound to produce a catalyst precursor, activating the catalyst precursor in a temperature range of from about 400\xb0 C. The first control packet is transmitted using a first configuration, and the second control packet is transmitted using a second configuration.