Location of an object to be tracked is determined by measuring, at a receiver situated at the object, the propagation time differences between the signals from a plurality of GPS satellites, each of which is received by the receiver situated at the object. At least one trench extends through the body region and the substrate. The clips can be adapted for use with elements other than sensors, in particular for applications in which a number of relatively elongated members are to be secured in parallel. In one embodiment, a compiler may optimize code for efficient execution during run-time by testing for dependencies associated with improving memory locality through code replication in loops that enable various loop transformations. The finger energies obtained from a finger processor formed by a RAKE receiver of the base transceiver station are compared to the additional validation threshold.