A communications base station is installed at a selected new location and the base station, prior to going \u201con line\u201d monitors the wireless traffic from other base stations within interference range of the new base station’s coverage area. The wireless device transmits the random access preamble in parallel with a first packet andor at least one second packet. The TFT substrate and the CF substrate have inside surfaces that oppose the liquid crystal and are both provided with alignment layers. To obtain a high sensitivity, i. One such method includes removing a second semiconductor layer from a second metal layer in a region above a second cap layer, from adjoining regions and from regions adjacent to a second fin.