A test scanner located where it does not directly receive GPS signals relies on a second device, a reference transmitter with a GPS receiver, to provide time information. The method may include collecting cellular ID numbers obtained by collection mobile devices at a plurality of geographic locations then calculating minimum bounding circles encompassing a set of geographic location points with the same cellular identification numbers. The insert may have two panels each containing one or more pockets in which shoes can be placed. In this manner, a color display tube that achieves an image display with a high resolution can be provided. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. Notch effect and consequently a weakening of the cross section on the highly stressed shaft projection is avoided by the said processes.