Data packets are transmitted from a terminal of a broadband radio communication system. The internal devices utilize heat pipes within the electrodes to transfer heat to secondary heat removal features. The multi head sprinklers are mounted vertically to the horizontal pipes which are linked with wheels for easy displacing of the system during irrigation. The match indicator is timed, relative to exclusive data return, such that the LSU can discard prefetched instructions following execution of the store operation that stores to a line subject to an exclusive data return, and for which the match is indicated. An axial DC gradient is preferably maintained along at least a portion of the length of the fragmentation cell in order to improve the transit time of ions through the device. In one arrangement, the roller is a tapered cylindrical roller actuated by hydraulic pressure applied from within the bore of the expander tool.