A system for loading application identifiers to a mobile device includes a mobile device, a card device insertable into the mobile device, and an application center. The platform includes a bicycle mounting base configured to accept the footprint of a conventionally dimensioned exercise bicycle. An Internet Protocol interface node coupled to the TDM bus receives IP packets from an IP caller and communicates corresponding information in a second timeslot using the TDM bus. Each received pulse is sampled and decomposed to produce frequency coefficients stacked in a set of linear systems modeling a reflectivity of the scene.